//===--- DiagnosticsSema.def - Diagnostics Text -----------------*- C++ -*-===// // // This source file is part of the Swift.org open source project // // Copyright (c) 2014 - 2017 Apple Inc. and the Swift project authors // Licensed under Apache License v2.0 with Runtime Library Exception // // See https://swift.org/LICENSE.txt for license information // See https://swift.org/CONTRIBUTORS.txt for the list of Swift project authors // //===----------------------------------------------------------------------===// // // This file defines diagnostics emitted during semantic analysis and type // checking. // Each diagnostic is described using one of three kinds (error, warning, or // note) along with a unique identifier, category, options, and text, and is // followed by a signature describing the diagnostic argument kinds. // //===----------------------------------------------------------------------===// #if !(defined(DIAG) || (defined(ERROR) && defined(WARNING) && defined(NOTE))) # error Must define either DIAG or the set {ERROR,WARNING,NOTE} #endif #ifndef ERROR # define ERROR(ID,Options,Text,Signature) \ DIAG(ERROR,ID,Options,Text,Signature) #endif #ifndef WARNING # define WARNING(ID,Options,Text,Signature) \ DIAG(WARNING,ID,Options,Text,Signature) #endif #ifndef NOTE # define NOTE(ID,Options,Text,Signature) \ DIAG(NOTE,ID,Options,Text,Signature) #endif NOTE(type_declared_here,none, "type declared here", ()) NOTE(decl_declared_here,none, "%0 declared here", (DeclName)) NOTE(extended_type_declared_here,none, "extended type declared here", ()) //------------------------------------------------------------------------------ // Constraint solver diagnostics //------------------------------------------------------------------------------ ERROR(ambiguous_member_overload_set,none, "ambiguous reference to member %0", (DeclName)) ERROR(ambiguous_subscript,none, "ambiguous subscript with base type %0 and index type %1", (Type, Type)) ERROR(type_not_subscriptable,none, "type %0 has no subscript members", (Type)) ERROR(could_not_find_tuple_member,none, "value of tuple type %0 has no member %1", (Type, DeclName)) ERROR(could_not_find_value_member,none, "value of type %0 has no member %1", (Type, DeclName)) ERROR(could_not_find_type_member,none, "type %0 has no member %1", (Type, DeclName)) ERROR(could_not_find_enum_case,none, "enum type %0 has no case %1; did you mean %2", (Type, DeclName, DeclName)) NOTE(did_you_mean_raw_type,none, "did you mean to specify a raw type on the enum declaration?", ()) NOTE(any_as_anyobject_fixit, none, "cast 'Any' to 'AnyObject' or use 'as!' to force downcast to a more specific type to access members", ()) ERROR(expected_argument_in_contextual_member,none, "member %0 expects argument of type %1", (DeclName, Type)) ERROR(expected_parens_in_contextual_member,none, "member %0 is a function; did you mean to call it?", (DeclName)) ERROR(expected_result_in_contextual_member,none, "member %0 in %2 produces result of type %1, but context expects %2", (DeclName, Type, Type)) ERROR(unexpected_argument_in_contextual_member,none, "member %0 takes no arguments", (DeclName)) ERROR(unexpected_parens_in_contextual_member,none, "member %0 is not a function", (DeclName)) ERROR(could_not_use_value_member,none, "member %1 cannot be used on value of type %0", (Type, DeclName)) ERROR(could_not_use_type_member,none, "member %1 cannot be used on type %0", (Type, DeclName)) ERROR(could_not_use_type_member_on_instance,none, "static member %1 cannot be used on instance of type %0", (Type, DeclName)) ERROR(could_not_use_enum_element_on_instance,none, "enum element %0 cannot be referenced as an instance member", (DeclName)) ERROR(could_not_use_type_member_on_protocol_metatype,none, "static member %1 cannot be used on protocol metatype %0", (Type, DeclName)) ERROR(could_not_use_instance_member_on_type,none, "instance member %1 cannot be used on type %0", (Type, DeclName)) ERROR(could_not_use_member_on_existential,none, "member %1 cannot be used on value of protocol type %0; use a generic" " constraint instead", (Type, DeclName)) ERROR(candidate_inaccessible,none, "%0 is inaccessible due to " "'%select{private|fileprivate|internal|%error|%error}1' protection level", (DeclName, Accessibility)) NOTE(note_candidate_inaccessible,none, "%0 is inaccessible due to " "'%select{private|fileprivate|internal|%error|%error}1' protection level", (DeclName, Accessibility)) ERROR(init_candidate_inaccessible,none, "%0 initializer is inaccessible due to " "'%select{private|fileprivate|internal|%error|%error}1' protection level", (Type, Accessibility)) ERROR(all_candidates_inaccessible,none, "all %0 candidates are inaccessible", (DeclName)) ERROR(cannot_pass_rvalue_mutating_subelement,none, "cannot use mutating member on immutable value: %0", (StringRef)) ERROR(cannot_pass_rvalue_mutating,none, "cannot use mutating member on immutable value of type %0", (Type)) ERROR(cannot_pass_rvalue_mutating_getter_subelement,none, "cannot use mutating getter on immutable value: %0", (StringRef)) ERROR(cannot_pass_rvalue_mutating_getter,none, "cannot use mutating getter on immutable value of type %0", (Type)) ERROR(expression_too_complex,none, "expression was too complex to be solved in reasonable time; " "consider breaking up the expression into distinct sub-expressions", ()) ERROR(value_type_comparison_with_nil_illegal_did_you_mean,none, "value of type %0 cannot be compared by reference; " "did you mean to compare by value?", (Type)) ERROR(value_type_comparison_with_nil_illegal,none, "type %0 is not optional, value can never be nil", (Type)) ERROR(cannot_match_expr_pattern_with_value,none, "expression pattern of type %0 cannot match values of type %1", (Type, Type)) ERROR(cannot_match_unresolved_expr_pattern_with_value,none, "pattern cannot match values of type %0", (Type)) ERROR(cannot_reference_compare_types,none, "cannot check reference equality of functions; operands here have types " "%1 and %2", (StringRef, Type, Type)) ERROR(cannot_apply_binop_to_args,none, "binary operator '%0' cannot be applied to operands of type " "%1 and %2", (StringRef, Type, Type)) ERROR(cannot_apply_binop_to_same_args,none, "binary operator '%0' cannot be applied to two %1 operands", (StringRef, Type)) ERROR(cannot_apply_unop_to_arg,none, "unary operator '%0' cannot be applied to an operand of type %1", (StringRef, Type)) ERROR(cannot_apply_lvalue_unop_to_subelement,none, "cannot pass immutable value to mutating operator: %0", (StringRef)) ERROR(cannot_apply_lvalue_unop_to_rvalue,none, "cannot pass immutable value of type %0 to mutating operator", (Type)) ERROR(cannot_apply_lvalue_binop_to_subelement,none, "left side of mutating operator isn't mutable: %0", (StringRef)) ERROR(cannot_apply_lvalue_binop_to_rvalue,none, "left side of mutating operator has immutable type %0", (Type)) ERROR(cannot_subscript_with_index,none, "cannot subscript a value of type %0 with an index of type %1", (Type, Type)) ERROR(cannot_subscript_base,none, "cannot subscript a value of type %0", (Type)) ERROR(cannot_subscript_ambiguous_base,none, "cannot subscript a value of incorrect or ambiguous type", ()) ERROR(cannot_subscript_nil_literal,none, "cannot subscript a nil literal value", ()) ERROR(cannot_pass_rvalue_inout_subelement,none, "cannot pass immutable value as inout argument: %0", (StringRef)) ERROR(cannot_pass_rvalue_inout,none, "cannot pass immutable value of type %0 as inout argument", (Type)) ERROR(cannot_assign_to_literal,none, "cannot assign to a literal value", ()) ERROR(cannot_call_with_no_params,none, "cannot invoke %select{|initializer for type }1'%0' with no arguments", (StringRef, bool)) ERROR(cannot_call_with_params, none, "cannot invoke %select{|initializer for type }2'%0' with an argument list" " of type '%1'", (StringRef, StringRef, bool)) NOTE(pointer_init_to_type,none, "Pointer conversion restricted: use '.assumingMemoryBound(to:)' or '.bindMemory(to:capacity:)' to view memory as a type.", ()) ERROR(cannot_call_non_function_value,none, "cannot call value of non-function type %0", (Type)) ERROR(wrong_argument_labels_overload,none, "argument labels '%0' do not match any available overloads", (StringRef)) ERROR(no_candidates_match_result_type,none, "no '%0' candidates produce the expected contextual result type %1", (StringRef, Type)) ERROR(candidates_no_match_result_type,none, "'%0' produces %1, not the expected contextual result type %2", (StringRef, Type, Type)) ERROR(invalid_callee_result_type,none, "cannot convert call result type %0 to expected type %1", (Type, Type)) ERROR(cannot_invoke_closure,none, "cannot invoke closure expression with an argument list of type '%0'", (StringRef)) ERROR(cannot_invoke_closure_type,none, "cannot invoke closure of type %0 with an argument list of type '%1'", (Type, StringRef)) ERROR(cannot_infer_closure_type,none, "unable to infer closure type in the current context", ()) ERROR(cannot_infer_closure_result_type,none, "unable to infer complex closure return type; " "add explicit type to disambiguate", ()) ERROR(incorrect_explicit_closure_result,none, "declared closure result %0 is incompatible with contextual type %1", (Type, Type)) ERROR(cannot_call_function_value,none, "cannot invoke value of function type with argument list '%0'", (StringRef)) ERROR(cannot_call_value_of_function_type,none, "cannot invoke value of type %0 with argument list '%1'", (Type, StringRef)) NOTE(suggest_expected_match,none, "%select{expected an argument list|produces result}0 of type '%1'", (bool, StringRef)) NOTE(suggest_partial_overloads,none, "overloads for '%1' exist with these %select{" "partially matching parameter lists|result types}0: %2", (bool, StringRef, StringRef)) NOTE(no_binary_op_overload_for_enum_with_payload,none, "binary operator '%0' cannot be synthesized for enums " "with associated values", (StringRef)) ERROR(cannot_convert_initializer_value,none, "cannot convert value of type %0 to specified type %1", (Type,Type)) ERROR(cannot_convert_initializer_value_protocol,none, "value of type %0 does not conform to specified type %1", (Type,Type)) ERROR(cannot_convert_initializer_value_nil,none, "nil cannot initialize specified type %0", (Type)) ERROR(cannot_convert_to_return_type,none, "cannot convert return expression of type %0 to return type %1", (Type,Type)) ERROR(cannot_convert_to_return_type_protocol,none, "return expression of type %0 does not conform to %1", (Type,Type)) ERROR(cannot_convert_to_return_type_nil,none, "nil is incompatible with return type %0", (Type)) ERROR(cannot_convert_thrown_type,none, "thrown expression type %0 does not conform to 'Error'", (Type)) ERROR(cannot_throw_error_code,none, "thrown error code type %0 does not conform to 'Error'; construct an %1 " "instance", (Type, Type)) ERROR(cannot_throw_nil,none, "cannot infer concrete Error for thrown 'nil' value", ()) ERROR(cannot_convert_raw_initializer_value,none, "cannot convert value of type %0 to raw type %1", (Type,Type)) ERROR(cannot_convert_raw_initializer_value_nil,none, "cannot convert nil to raw type %0", (Type)) ERROR(cannot_convert_default_arg_value,none, "default argument value of type %0 cannot be converted to type %1", (Type,Type)) ERROR(cannot_convert_default_arg_value_protocol,none, "default argument value of type %0 does not conform to %1", (Type,Type)) ERROR(cannot_convert_default_arg_value_nil,none, "nil default argument value of cannot be converted to type %0", (Type)) ERROR(cannot_convert_argument_value,none, "cannot convert value of type %0 to expected argument type %1", (Type,Type)) ERROR(cannot_convert_argument_value_protocol,none, "argument type %0 does not conform to expected type %1", (Type, Type)) ERROR(cannot_convert_partial_argument_value_protocol,none, "in argument type %0, %1 does not conform to expected type %2", (Type, Type, Type)) ERROR(cannot_convert_argument_value_nil,none, "nil is not compatible with expected argument type %0", (Type)) ERROR(cannot_convert_closure_result,none, "cannot convert value of type %0 to closure result type %1", (Type,Type)) ERROR(cannot_convert_closure_result_protocol,none, "result value of type %0 does not conform to closure result type %1", (Type, Type)) ERROR(cannot_convert_closure_result_nil,none, "nil is not compatible with closure result type %0", (Type)) ERROR(destructor_not_accessible,none, "deinitializers cannot be accessed", ()) // Array Element ERROR(cannot_convert_array_element,none, "cannot convert value of type %0 to expected element type %1", (Type,Type)) ERROR(cannot_convert_array_element_protocol,none, "value of type %0 does not conform to expected element type %1", (Type, Type)) ERROR(cannot_convert_array_element_nil,none, "nil is not compatible with expected element type %0", (Type)) // Dictionary Key ERROR(cannot_convert_dict_key,none, "cannot convert value of type %0 to expected dictionary key type %1", (Type,Type)) ERROR(cannot_convert_dict_key_protocol,none, "value of type %0 does not conform to expected dictionary key type %1", (Type, Type)) ERROR(cannot_convert_dict_key_nil,none, "nil is not compatible with expected dictionary key type %0", (Type)) // Dictionary Value ERROR(cannot_convert_dict_value,none, "cannot convert value of type %0 to expected dictionary value type %1", (Type,Type)) ERROR(cannot_convert_dict_value_protocol,none, "value of type %0 does not conform to expected dictionary value type %1", (Type, Type)) ERROR(cannot_convert_dict_value_nil,none, "nil is not compatible with expected dictionary value type %0", (Type)) // Coerce Expr ERROR(cannot_convert_coerce,none, "cannot convert value of type %0 to type %1 in coercion", (Type,Type)) ERROR(cannot_convert_coerce_protocol,none, "value of type %0 does not conform to %1 in coercion", (Type, Type)) ERROR(cannot_convert_coerce_nil,none, "nil is not compatible with type %0 in coercion", (Type)) // Assign Expr ERROR(cannot_convert_assign,none, "cannot assign value of type %0 to type %1", (Type,Type)) ERROR(cannot_convert_assign_protocol,none, "value of type %0 does not conform to %1 in assignment", (Type, Type)) ERROR(cannot_convert_assign_nil,none, "nil cannot be assigned to type %0", (Type)) ERROR(throws_functiontype_mismatch,none, "invalid conversion from throwing function of type %0 to " "non-throwing function type %1", (Type, Type)) ERROR(noescape_functiontype_mismatch,none, "invalid conversion from non-escaping function of type %0 to " "potentially escaping function type %1", (Type, Type)) // Key-path expressions. ERROR(expr_keypath_no_objc_runtime,none, "'#keyPath' can only be used with the Objective-C runtime", ()) ERROR(expression_unused_keypath_result,none, "result of '#keyPath' is unused", ()) ERROR(expr_keypath_non_objc_property,none, "argument of '#keyPath' refers to non-'@objc' property %0", (DeclName)) WARNING(expr_keypath_swift3_objc_inference,none, "argument of '#keyPath' refers to property %0 in %1 that depends on " "'@objc' attribute inference deprecated in Swift 4", (DeclName, Identifier)) ERROR(expr_keypath_type_of_property,none, "cannot refer to type member %0 within instance of type %1", (DeclName, Type)) ERROR(expr_keypath_generic_type,none, "'#keyPath' cannot refer to generic type %0", (DeclName)) ERROR(expr_keypath_not_property,none, "'#keyPath' cannot refer to %0 %1", (DescriptiveDeclKind, DeclName)) ERROR(expr_keypath_mutating_getter,none, "'#keyPath' cannot refer to %0, which has a mutating getter", (DeclName)) ERROR(expr_keypath_empty,none, "empty '#keyPath' does not refer to a property", ()) ERROR(expr_unsupported_objc_key_path_component,none, "an Objective-C key path cannot contain " "%select{BAD|subscript|BAD|BAD|optional-forcing|optional-chaining|BAD} " "components", (unsigned)) ERROR(expr_unsupported_objc_key_path_compound_name,none, "an Objective-C key path cannot reference a declaration with a " "compound name", ()) ERROR(expr_keypath_no_keypath_type,none, "broken standard library: no 'KeyPath' type found", ()) // Selector expressions. ERROR(expr_selector_no_objc_runtime,none, "'#selector' can only be used with the Objective-C runtime", ()) ERROR(expr_selector_module_missing,none, "import the 'ObjectiveC' module to use '#selector'", ()) ERROR(expr_selector_no_declaration,none, "argument of '#selector' does not refer to an '@objc' method, property, " "or initializer", ()) ERROR(expr_selector_not_method,none, "argument of '#selector' cannot refer to %select{local|global}0 " "function %1", (bool, DeclName)) ERROR(expr_selector_expected_property,none, "cannot reference %1 %2 as a property; remove '%select{getter|setter}0:'", (bool, DescriptiveDeclKind, DeclName)) ERROR(expr_selector_not_property,none, "argument of '#selector' cannot refer to %select{variable|parameter}0 %1", (bool, DeclName)) ERROR(expr_selector_expected_method,none, "use 'getter:'%select{| or 'setter:'}0 to refer to the Objective-C getter" "%select{| or setter}0 of property %1%select{|, respectively}0", (bool, DeclName)) NOTE(expr_selector_add_modifier,none, "add '%select{getter|setter}0:' to reference the Objective-C " "%select{getter|setter}0 for %1", (bool, DeclName)) ERROR(expr_selector_property_not_settable,none, "argument of '#selector(setter:)' refers to non-settable %0 %1", (DescriptiveDeclKind, DeclName)) ERROR(expr_selector_property_setter_inaccessible,none, "setter of %0 %1 is inaccessible", (DescriptiveDeclKind, DeclName)) ERROR(expr_selector_not_objc,none, "argument of '#selector' refers to %0 %1 that is not exposed to " "Objective-C", (DescriptiveDeclKind, DeclName)) NOTE(make_decl_objc,none, "add '@objc' to expose this %0 to Objective-C", (DescriptiveDeclKind)) WARNING(expr_selector_swift3_objc_inference,none, "argument of '#selector' refers to %0 %1 in %2 that depends on " "'@objc' attribute inference deprecated in Swift 4", (DescriptiveDeclKind, DeclName, Identifier)) // Selectors-as-string-literals. WARNING(selector_literal_invalid,none, "string literal is not a valid Objective-C selector", ()) WARNING(selector_literal_undeclared,none, "no method declared with Objective-C selector %0", (ObjCSelector)) WARNING(selector_literal_deprecated,none, "use of string literal for Objective-C selectors is deprecated; " "use '#selector' or explicitly construct a 'Selector'", ()) WARNING(selector_literal_deprecated_suggest,none, "use of string literal for Objective-C selectors is deprecated; " "use '#selector' instead", ()) WARNING(selector_construction_suggest,none, "use '#selector' instead of explicitly constructing a 'Selector'", ()) NOTE(selector_construction_suppress_warning,none, "wrap the selector name in parentheses to suppress this warning", ()) ERROR(cannot_return_value_from_void_func,none, "unexpected non-void return value in void function", ()) //------------------------------------------------------------------------------ // Name Binding //------------------------------------------------------------------------------ ERROR(sema_no_import,Fatal, "no such module '%0'", (StringRef)) ERROR(sema_no_import_repl,none, "no such module '%0'", (StringRef)) NOTE(sema_no_import_no_sdk,none, "did you forget to set an SDK using -sdk or SDKROOT?", ()) NOTE(sema_no_import_no_sdk_xcrun,none, "use \"xcrun swiftc\" to select the default macOS SDK " "installed with Xcode", ()) WARNING(sema_import_current_module,none, "this file is part of module %0; ignoring import", (Identifier)) WARNING(sema_import_current_module_with_file,none, "file '%0' is part of module %1; ignoring import", (StringRef, Identifier)) ERROR(sema_opening_import,Fatal, "opening import file for module %0: %1", (Identifier, StringRef)) ERROR(serialization_load_failed,Fatal, "failed to load module %0", (Identifier)) ERROR(serialization_malformed_module,Fatal, "malformed module file: %0", (StringRef)) ERROR(serialization_module_too_new,Fatal, "module file was created by a newer version of the compiler: %0", (StringRef)) ERROR(serialization_module_language_version_mismatch,Fatal, "module compiled with Swift %0 cannot be imported in Swift %1: %2", (StringRef, StringRef, StringRef)) ERROR(serialization_module_too_old,Fatal, "module file was created by an older version of the compiler; " "rebuild %0 and try again: %1", (Identifier, StringRef)) ERROR(serialization_missing_single_dependency,Fatal, "missing required module '%0'", (StringRef)) ERROR(serialization_missing_dependencies,Fatal, "missing required modules: %0", (StringRef)) ERROR(serialization_missing_shadowed_module,Fatal, "cannot load underlying module for %0", (Identifier)) ERROR(serialization_name_mismatch,Fatal, "cannot load module '%0' as %1", (StringRef, Identifier)) ERROR(serialization_name_mismatch_repl,none, "cannot load module '%0' as %1", (StringRef, Identifier)) ERROR(serialization_target_incompatible,Fatal, "module file was created for incompatible target %0: %1", (StringRef, StringRef)) ERROR(serialization_target_incompatible_repl,none, "module file was created for incompatible target %0: %1", (StringRef, StringRef)) ERROR(serialization_target_too_new,Fatal, "module file's minimum deployment target is %0 v%1.%2%select{|.%3}3: %4", (StringRef, unsigned, unsigned, unsigned, StringRef)) ERROR(serialization_target_too_new_repl,none, "module file's minimum deployment target is %0 v%1.%2%select{|.%3}3: %4", (StringRef, unsigned, unsigned, unsigned, StringRef)) ERROR(serialization_fatal,Fatal, "fatal error encountered while reading from module '%0'; " "please file a bug report with your project and the crash log", (StringRef)) NOTE(serialization_compatibility_version_mismatch,none, "compiling as Swift %0, with '%1' built as Swift %2 " "(this is supported but may expose additional compiler issues)", (StringRef, StringRef, StringRef)) ERROR(reserved_member_name,none, "type member may not be named %0, since it would conflict with the" " 'foo.%1' expression", (DeclName, StringRef)) ERROR(invalid_redecl,none,"invalid redeclaration of %0", (DeclName)) NOTE(invalid_redecl_prev,none, "%0 previously declared here", (DeclName)) ERROR(ambiguous_type_base,none, "%0 is ambiguous for type lookup in this context", (Identifier)) ERROR(invalid_member_type,none, "%0 is not a member type of %1", (Identifier, Type)) ERROR(invalid_member_type_suggest,none, "%0 does not have a member type named %1; did you mean %2?", (Type, Identifier, Identifier)) ERROR(invalid_member_reference,none, "%0 %1 is not a member type of %2", (DescriptiveDeclKind, Identifier, Type)) ERROR(ambiguous_member_type,none, "ambiguous type name %0 in %1", (Identifier, Type)) ERROR(no_module_type,none, "no type named %0 in module %1", (Identifier, Identifier)) ERROR(ambiguous_module_type,none, "ambiguous type name %0 in module %1", (Identifier, Identifier)) ERROR(use_nonmatching_operator,none, "%0 is not a %select{binary|prefix unary|postfix unary}1 operator", (Identifier, unsigned)) ERROR(broken_associated_type_witness,none, "reference to invalid associated type %0 of type %1", (DeclName, Type)) ERROR(unspaced_binary_operator_fixit,none, "missing whitespace between %0 and %1 operators", (Identifier, Identifier, bool)) ERROR(unspaced_binary_operator,none, "ambiguous missing whitespace between unary and binary operators", ()) NOTE(unspaced_binary_operators_candidate,none, "could be %select{binary|postfix}2 %0 and %select{prefix|binary}2 %1", (Identifier, Identifier, bool)) ERROR(unspaced_unary_operator,none, "unary operators may not be juxtaposed; parenthesize inner expression", ()) ERROR(use_unresolved_identifier,none, "use of unresolved %select{identifier|operator}1 %0", (DeclName, bool)) ERROR(use_undeclared_type,none, "use of undeclared type %0", (Identifier)) ERROR(use_undeclared_type_did_you_mean,none, "use of undeclared type %0; did you mean to use '%1'?", (Identifier, StringRef)) NOTE(note_typo_candidate_implicit_member,none, "did you mean the implicitly-synthesized %1 '%0'?", (StringRef, StringRef)) NOTE(note_remapped_type,none, "did you mean to use '%0'?", (StringRef)) ERROR(identifier_init_failure,none, "could not infer type for %0", (Identifier)) ERROR(pattern_used_in_type,none, "%0 used within its own type", (Identifier)) NOTE(note_module_as_type,none, "cannot use module %0 as a type", (Identifier)) ERROR(use_unknown_object_literal_protocol,none, "cannot deduce protocol for %0 literal", (StringRef)) ERROR(object_literal_default_type_missing,none, "could not infer type of %0 literal", (StringRef)) NOTE(object_literal_resolve_import,none, "import %0 to use '%1' as the default %2 literal type", (StringRef, StringRef, StringRef)) ERROR(use_local_before_declaration,none, "use of local variable %0 before its declaration", (DeclName)) ERROR(unsupported_existential_type,none, "protocol %0 can only be used as a generic constraint because it has " "Self or associated type requirements", (Identifier)) ERROR(decl_does_not_exist_in_module,none, "%select{%error|type|struct|class|enum|protocol|variable|function}0 " "%1 does not exist in module %2", (/*ImportKind*/ unsigned, Identifier, Identifier)) ERROR(imported_decl_is_wrong_kind,none, "%0 was imported as '%1', but is a " "%select{%error|type|struct|class|enum|protocol|variable|function}2", (Identifier, StringRef, /*ImportKind*/ unsigned)) ERROR(ambiguous_decl_in_module,none, "ambiguous name %0 in module %1", (Identifier, Identifier)) ERROR(module_not_testable,none, "module %0 was not compiled for testing", (Identifier)) // Operator decls ERROR(ambiguous_operator_decls,none, "ambiguous operator declarations found for operator", ()) NOTE(found_this_operator_decl,none, "found this matching operator declaration", ()) ERROR(operator_redeclared,none, "operator redeclared", ()) NOTE(previous_operator_decl,none, "previous operator declaration here", ()) ERROR(declared_operator_without_operator_decl,none, "operator implementation without matching operator declaration", ()) ERROR(declared_unary_op_without_attribute,none, "unary operator implementation must have a 'prefix' or 'postfix' modifier", ()) ERROR(unary_op_missing_prepos_attribute,none, "%select{prefix|postfix}0 unary operator missing " "'%select{prefix|postfix}0' modifier", (bool)) NOTE(unary_operator_declaration_here,none, "%select{prefix|postfix}0 operator found here", (bool)) ERROR(invalid_arg_count_for_operator,none, "operators must have one or two arguments", ()) ERROR(operator_in_local_scope,none, "operator functions can only be declared at global or in type scope", ()) ERROR(nonstatic_operator_in_type,none, "operator %0 declared in type %1 must be 'static'", (Identifier, Type)) ERROR(nonfinal_operator_in_class,none, "operator %0 declared in non-final class %1 must be 'final'", (Identifier, Type)) ERROR(operator_in_unrelated_type,none, "member operator %2%select{| of protocol %0}1 must have at least one " "argument of type %select{%0|'Self'}1", (Type, bool, DeclName)) // Precedence groups ERROR(ambiguous_precedence_groups,none, "multiple precedence groups found", ()) NOTE(found_this_precedence_group,none, "found this matching precedence group", ()) ERROR(unknown_precedence_group,none, "unknown precedence group %0", (Identifier)) ERROR(precedence_group_cycle,none, "cycle in higherThan relation: %0", (StringRef)) ERROR(precedence_group_lower_within_module,none, "precedence group cannot be given lower precedence than group in same" " module; make the other precedence group higher than this one instead", ()) NOTE(precedence_group_declared_here,none,"precedence group declared here", ()) ERROR(precedence_group_redeclared,none, "precedence group redeclared", ()) NOTE(previous_precedence_group_decl,none, "previous precedence group declaration here", ()) //------------------------------------------------------------------------------ // Type Check Coercions //------------------------------------------------------------------------------ ERROR(tuple_conversion_not_expressible,none, "cannot express tuple conversion %0 to %1", (Type, Type)) ERROR(load_of_explicit_lvalue,none, "%0 variable is not being passed by reference", (Type)) //------------------------------------------------------------------------------ // Expression Type Checking Errors //------------------------------------------------------------------------------ ERROR(types_not_convertible,none, "%1 is not %select{convertible to|a subtype of}0 %2", (bool, Type, Type)) NOTE(in_cast_expr_types,none, "in cast from type %0 to %1", (Type, Type)) ERROR(types_not_convertible_use_bool_value,none, "%0 is not convertible to %1; did you mean %0.boolValue", (Type, Type)) ERROR(tuple_types_not_convertible_nelts,none, "%0 is not convertible to %1, " "tuples have a different number of elements", (Type, Type)) ERROR(tuple_types_not_convertible,none, "tuple type %0 is not convertible to tuple %1", (Type, Type)) ERROR(invalid_force_unwrap,none, "cannot force unwrap value of non-optional type %0", (Type)) ERROR(invalid_optional_chain,none, "cannot use optional chaining on non-optional value of type %0", (Type)) ERROR(if_expr_cases_mismatch,none, "result values in '? :' expression have mismatching types %0 and %1", (Type, Type)) ERROR(did_not_call_function_value,none, "function value was used as a property; add () to call it", ()) ERROR(did_not_call_function,none, "function %0 was used as a property; add () to call it", (Identifier)) ERROR(did_not_call_method,none, "method %0 was used as a property; add () to call it", (Identifier)) ERROR(init_not_instance_member,none, "'init' is a member of the type; use 'type(of: ...)' to initialize " "a new object of the same dynamic type", ()) ERROR(super_initializer_not_in_initializer,none, "'super.init' cannot be called outside of an initializer", ()) WARNING(isa_is_always_true,none, "'%0' test is always true", (StringRef)) WARNING(isa_is_foreign_check,none, "'is' test is always true because %0 is a Core Foundation type", (Type)) WARNING(conditional_downcast_coercion,none, "conditional cast from %0 to %1 always succeeds", (Type, Type)) WARNING(forced_downcast_noop,none, "forced cast of %0 to same type has no effect", (Type)) WARNING(forced_downcast_coercion,none, "forced cast from %0 to %1 always succeeds; did you mean to use 'as'?", (Type, Type)) // Note: the Boolean at the end indicates whether bridging is required after // the cast. WARNING(downcast_same_type,none, "forced cast from %0 to %1 %select{only unwraps optionals|only unwraps " "and bridges}3; did you mean to use '%2'%select{| with 'as'}3?", (Type, Type, StringRef, bool)) // The unsigned value can be 0 (types are equal), 1 (types implicitly convert), // or 2 (types bridge). WARNING(conditional_downcast_same_type,none, "conditional downcast from %0 to %1 %select{does nothing|" "is equivalent to an implicit conversion to an optional %1|is a " "bridging conversion; did you mean to use 'as'?}2", (Type, Type, unsigned)) WARNING(is_expr_same_type,none, "checking a value with optional type %0 against dynamic type %1 " "succeeds whenever the value is non-'nil'; did you mean to use " "'!= nil'?", (Type, Type)) WARNING(downcast_to_unrelated,none, "cast from %0 to unrelated type %1 always fails", (Type, Type)) ERROR(downcast_to_more_optional,none, "cannot downcast from %0 to a more optional type %1", (Type, Type)) ERROR(optional_chain_noop,none, "optional chain has no effect, expression already produces %0", (Type)) ERROR(optional_chain_isnt_chaining,none, "'?' must be followed by a call, member lookup, or subscript", ()) ERROR(pattern_in_expr,none, "%0 cannot appear in an expression", (PatternKind)) NOTE(note_call_to_operator,none, "in call to operator %0", (Identifier)) NOTE(note_call_to_func,none, "in call to function %0", (Identifier)) NOTE(note_call_to_initializer,none, "in call to initializer", ()) NOTE(note_init_parameter,none, "in initialization of parameter %0", (Identifier)) ERROR(missing_nullary_call,none, "function produces expected type %0; did you mean to call it with '()'?", (Type)) ERROR(missing_unwrap_optional,none, "value of optional type %0 not unwrapped; did you mean to use '!' " "or '?'?", (Type)) ERROR(missing_unwrap_optional_try,none, "value of optional type %0 not unwrapped; did you mean to use 'try!' " "or chain with '?'?", (Type)) ERROR(missing_forced_downcast,none, "%0 is not convertible to %1; " "did you mean to use 'as!' to force downcast?", (Type, Type)) WARNING(missing_forced_downcast_swift3_compat_warning,none, "bridging %0 to %1 may fail at runtime and will become a checked " "cast in Swift 4; did you mean to use 'as!' to force downcast?", (Type, Type)) ERROR(missing_explicit_conversion,none, "%0 is not implicitly convertible to %1; " "did you mean to use 'as' to explicitly convert?", (Type, Type)) ERROR(missing_address_of,none, "passing value of type %0 to an inout parameter requires explicit '&'", (Type)) ERROR(extra_address_of,none, "'&' used with non-inout argument of type %0", (Type)) ERROR(extra_address_of_unsafepointer,none, "'&' is not allowed passing array value as %0 argument", (Type)) ERROR(missing_init_on_metatype_initialization,none, "initializing from a metatype value must reference 'init' explicitly", ()) ERROR(extra_argument_labels,none, "extraneous argument label%select{|s}0 '%1' in %select{call|subscript}2", (bool, StringRef, bool)) ERROR(missing_argument_labels,none, "missing argument label%select{|s}0 '%1' in %select{call|subscript}2", (bool, StringRef, bool)) ERROR(wrong_argument_labels,none, "incorrect argument label%select{|s}0 in %select{call|subscript}3 " "(have '%1', expected '%2')", (bool, StringRef, StringRef, bool)) ERROR(extra_named_single_element_tuple,none, "cannot treat single-element named tuple as a scalar; use '.%0' to " "access its element", (StringRef)) ERROR(argument_out_of_order_named_named,none, "argument %0 must precede argument %1", (Identifier, Identifier)) ERROR(argument_out_of_order_named_unnamed,none, "argument %0 must precede unnamed argument #%1", (Identifier, unsigned)) ERROR(argument_out_of_order_unnamed_named,none, "unnamed argument #%0 must precede argument %1", (unsigned, Identifier)) ERROR(argument_out_of_order_unnamed_unnamed,none, "unnamed argument #%0 must precede unnamed argument #%1", (unsigned, unsigned)) ERROR(member_shadows_global_function,none, "use of %0 refers to %1 %2 rather than %3 %4 in %5 %6", (DeclName, DescriptiveDeclKind, DeclName, DescriptiveDeclKind, DeclName, DescriptiveDeclKind, DeclName)) ERROR(instance_member_use_on_type,none, "instance member %1 cannot be used on type %0; " "did you mean to use a value of this type instead?", (Type, DeclName)) ERROR(instance_member_in_initializer,none, "cannot use instance member %0 within property initializer; " "property initializers run before 'self' is available", (DeclName)) ERROR(instance_member_in_default_parameter,none, "cannot use instance member %0 as a default parameter", (DeclName)) ERROR(invalid_initialization_parameter_same_type,none, "invalid initializer call with same type %0 as parameter", (Type)) ERROR(missing_argument_named,none, "missing argument for parameter %0 in call", (Identifier)) ERROR(missing_argument_positional,none, "missing argument for parameter #%0 in call", (unsigned)) ERROR(extra_argument_named,none, "extra argument %0 in call", (Identifier)) ERROR(extra_argument_positional,none, "extra argument in call", ()) ERROR(extra_argument_to_nullary_call,none, "argument passed to call that takes no arguments", ()) ERROR(extra_trailing_closure_in_call,none, "extra trailing closure passed in call", ()) ERROR(no_accessible_initializers,none, "%0 cannot be constructed because it has no accessible initializers", (Type)) ERROR(unbound_generic_parameter,none, "generic parameter %0 could not be inferred", (Type)) ERROR(unbound_generic_parameter_cast,none, "generic parameter %0 could not be inferred in cast to %1", (Type, Type)) NOTE(archetype_declared_in_type,none, "%0 declared as parameter to type %1", (Type, Type)) NOTE(unbound_generic_parameter_explicit_fix,none, "explicitly specify the generic arguments to fix this issue", ()) ERROR(string_index_not_integer,none, "String may not be indexed with %0, it has variable size elements", (Type)) NOTE(string_index_not_integer_note,none, "consider using an existing high level algorithm, " "str.startIndex.advanced(by: n), or a projection like str.utf8", ()) ERROR(invalid_c_function_pointer_conversion_expr,none, "a C function pointer can only be formed from a reference to a 'func' or " "a literal closure", ()) ERROR(c_function_pointer_from_method,none, "a C function pointer cannot be formed from a method", ()) ERROR(c_function_pointer_from_generic_function,none, "a C function pointer cannot be formed from a reference to a generic " "function", ()) ERROR(c_function_pointer_from_function_with_context,none, "a C function pointer cannot be formed from a " "%select{local function|closure}0 that captures " "%select{context|generic parameters|dynamic Self type}1", (bool, unsigned)) //------------------------------------------------------------------------------ // Type Check Declarations //------------------------------------------------------------------------------ ERROR(var_type_not_materializable,none, "variable has type %0 which includes nested inout parameters", (Type)) ERROR(param_type_non_materializable_tuple,none, "named parameter has type %0 which includes nested inout parameters", (Type)) ERROR(enum_element_not_materializable,none, "enum case has type %0 which includes nested inout parameters", (Type)) ERROR(missing_initializer_def,PointsToFirstBadToken, "initializer requires a body", ()) // Attributes ERROR(attr_decl_attr_now_on_type,none, "%0 is now an attribute on a parameter type, " "instead of on the parameter itself", (StringRef)) ERROR(operator_not_func,none, "operators must be declared with 'func'", ()) ERROR(redefining_builtin_operator,none, "cannot declare a custom %0 '%1' operator", (StringRef, StringRef)) ERROR(attribute_requires_operator_identifier,none, "'%0' requires a function with an operator identifier", (StringRef)) ERROR(attribute_requires_single_argument,none, "'%0' requires a function with one argument", (StringRef)) ERROR(var_parameter_not_allowed,none, "parameters may not have the 'var' specifier", ()) ERROR(mutating_invalid_global_scope,none, "'mutating' is only valid on methods", ()) ERROR(mutating_invalid_classes,none, "'mutating' isn't valid on methods in classes or class-bound protocols", ()) ERROR(functions_mutating_and_not,none, "method may not be declared both mutating and nonmutating", ()) ERROR(static_functions_not_mutating,none, "static functions may not be declared mutating", ()) ERROR(transparent_stored_property,none, "@_transparent cannot be applied to stored properties", ()) ERROR(transparent_in_protocols_not_supported,none, "@_transparent is not supported on declarations within protocols", ()) ERROR(transparent_in_classes_not_supported,none, "@_transparent is not supported on declarations within classes", ()) ERROR(invalid_iboutlet,none, "only instance properties can be declared @IBOutlet", ()) ERROR(iboutlet_nonobjc_class,none, "@IBOutlet property cannot %select{have|be an array of}0 " "non-'@objc' class type %1", (bool, Type)) ERROR(iboutlet_nonobjc_protocol,none, "@IBOutlet property cannot %select{have|be an array of}0 " "non-'@objc' protocol type %1", (bool, Type)) ERROR(iboutlet_nonobject_type,none, "@IBOutlet property cannot %select{have|be an array of}0 " "non-object type %1", (bool, Type)) ERROR(iboutlet_only_mutable,none, "@IBOutlet attribute requires property to be mutable", ()) ERROR(iboutlet_non_optional,none, "@IBOutlet property has non-optional type %0", (Type)) NOTE(note_make_optional,none, "add '?' to form the optional type %0", (Type)) NOTE(note_make_implicitly_unwrapped_optional,none, "add '!' to form the implicitly unwrapped optional type %0", (Type)) ERROR(invalid_ibdesignable_extension,none, "@IBDesignable can only be applied to classes and extensions " "of classes", ()) ERROR(invalid_ibinspectable,none, "only instance properties can be declared @%0", (StringRef)) ERROR(invalid_ibaction_decl,none, "only instance methods can be declared @IBAction", ()) ERROR(invalid_ibaction_result,none, "methods declared @IBAction must return 'Void' (not %0)", (Type)) ERROR(invalid_ibaction_argument_count,none, "@IBAction methods %select{must have a single argument" "|can only have up to 2 arguments}0", (bool)) ERROR(ibaction_nonobjc_class_argument,none, "argument to @IBAction method cannot have non-'@objc' class type %0", (Type)) ERROR(ibaction_nonobject_argument,none, "argument to @IBAction method cannot have non-object type %0", (Type)) ERROR(no_objc_tagged_pointer_not_class_protocol,none, "@unsafe_no_objc_tagged_pointer can only be applied to class protocols", ()) ERROR(swift_native_objc_runtime_base_not_on_root_class,none, "@_swift_native_objc_runtime_base_not_on_root_class can only be applied " "to root classes", ()) ERROR(cdecl_not_at_top_level,none, "@_cdecl can only be applied to global functions", ()) ERROR(cdecl_empty_name,none, "@_cdecl symbol name cannot be empty", ()) ERROR(cdecl_throws,none, "raising errors from @_cdecl functions is not supported", ()) ERROR(attr_methods_only,none, "only methods can be declared %0", (DeclAttribute)) ERROR(access_control_in_protocol,none, "%0 modifier cannot be used in protocols", (DeclAttribute)) ERROR(access_control_setter,none, "'%select{private|fileprivate|internal|public|open}0(set)' modifier can only " "be applied to variables and subscripts", (Accessibility)) ERROR(access_control_setter_read_only,none, "'%select{private|fileprivate|internal|public|%error}0(set)' modifier cannot be " "applied to %select{constants|read-only variables|read-only properties" "|read-only subscripts}1", (Accessibility, unsigned)) ERROR(access_control_setter_more,none, "%select{private|fileprivate|internal|public|%error}0 " "%select{variable|property|subscript}1 cannot have " "%select{%error|a fileprivate|an internal|a public|an open}2 setter", (Accessibility, unsigned, Accessibility)) WARNING(access_control_ext_member_more,none, "declaring %select{%error|a fileprivate|an internal|a public|open}0 %1 in " "%select{a private|a fileprivate|an internal|public|%error}2 extension", (Accessibility, DescriptiveDeclKind, Accessibility)) ERROR(access_control_ext_requirement_member_more,none, "cannot declare %select{%error|a fileprivate|an internal|a public|an open}0 %1 " "in an extension with %select{private|fileprivate|internal|public|%error}2 " "requirements", (Accessibility, DescriptiveDeclKind, Accessibility)) ERROR(access_control_extension_more,none, "extension of %select{private|fileprivate|internal|%error|%error}0 %1 cannot " "be declared %select{%error|fileprivate|internal|public|%error}2", (Accessibility, DescriptiveDeclKind, Accessibility)) ERROR(access_control_extension_open,none, "extensions cannot use 'open' as their default access; use 'public'", ()) ERROR(access_control_open_bad_decl,none, "only classes and overridable class members can be declared 'open';" " use 'public'", ()) ERROR(invalid_decl_attribute_simple,none, "attribute cannot be applied to declaration", ()) ERROR(invalid_decl_attribute,none, "%0 cannot be applied to this declaration", (DeclAttribute)) ERROR(invalid_decl_modifier,none, "%0 modifier cannot be applied to this declaration", (DeclAttribute)) ERROR(attribute_does_not_apply_to_type,none, "attribute does not apply to type", ()) ERROR(optional_attribute_non_protocol,none, "'optional' can only be applied to protocol members", ()) ERROR(optional_attribute_non_objc_protocol,none, "'optional' can only be applied to members of an @objc protocol", ()) ERROR(optional_attribute_missing_explicit_objc,none, "'optional' requirements are an Objective-C compatibility feature; add '@objc'", ()) ERROR(objcmembers_attribute_nonclass,none, "'@objcMembers' attribute can only be applied to a class", ()) ERROR(optional_attribute_initializer,none, "'optional' cannot be applied to an initializer", ()) ERROR(unavailable_method_non_objc_protocol,none, "protocol members can only be marked unavailable in an @objc protocol", ()) ERROR(missing_in_class_init_1,none, "stored property %0 requires an initial value%select{| or should be " "@NSManaged}1", (Identifier, bool)) ERROR(missing_in_class_init_2,none, "stored properties %0 and %1 require initial values%select{| or should " "be @NSManaged}2", (Identifier, Identifier, bool)) ERROR(missing_in_class_init_3plus,none, "stored properties %0, %1, %select{and %2|%2, and others}3 " "require initial values%select{| or should be @NSManaged}4", (Identifier, Identifier, Identifier, bool, bool)) NOTE(requires_stored_property_inits_here,none, "%select{superclass|class}1 %0 requires all stored properties to have " "initial values%select{| or use @NSManaged}2", (Type, bool, bool)) ERROR(class_without_init,none, "class %0 has no initializers", (Type)) NOTE(note_no_in_class_init_1,none, "stored property %0 without initial value prevents synthesized " "initializers", (Identifier)) NOTE(note_no_in_class_init_2,none, "stored properties %0 and %1 without initial values prevent synthesized " "initializers", (Identifier, Identifier)) NOTE(note_no_in_class_init_3plus,none, "stored properties %0, %1, %select{and %2|%2, and others}3 " "without initial values prevent synthesized initializers", (Identifier, Identifier, Identifier, bool)) ERROR(missing_unimplemented_init_runtime,none, "standard library error: missing _unimplementedInitializer", ()) ERROR(missing_undefined_runtime,none, "standard library error: missing _undefined", ()) WARNING(unsupported_synthesize_init_variadic,none, "synthesizing a variadic inherited initializer for subclass %0 is " "unsupported", (Type)) NOTE(variadic_superclass_init_here,none, "variadic superclass initializer defined here", ()) WARNING(expr_dynamic_lookup_swift3_objc_inference,none, "reference to %0 %1 of %2 depends on '@objc' attribute inference " "deprecated in Swift 4", (DescriptiveDeclKind, DeclName, Identifier)) // Alignment attribute ERROR(alignment_not_power_of_two,none, "alignment value must be a power of two", ()) // Indirect enums ERROR(indirect_case_without_payload,none, "enum case %0 without associated value cannot be 'indirect'", (Identifier)) ERROR(indirect_case_in_indirect_enum,none, "enum case in 'indirect' enum cannot also be 'indirect'", ()) // Variables (var and let). ERROR(unimplemented_static_var,none, "%select{ERROR|static|class}1 stored properties not supported" "%select{ in this context| in generic types| in classes}0" "%select{|; did you mean 'static'?}2", (unsigned, StaticSpellingKind, unsigned)) ERROR(observingprop_requires_initializer,none, "non-member observing properties require an initializer", ()) ERROR(global_requires_initializer,none, "global '%select{var|let}0' declaration requires an initializer expression" "%select{ or getter/setter specifier|}0", (bool)) ERROR(static_requires_initializer,none, "%select{ERROR|'static var'|'class var'|}0 declaration requires an initializer " "expression or getter/setter specifier", (StaticSpellingKind)) ERROR(pattern_type_access,none, "%select{%select{variable|constant}0|property}1 " "%select{must be declared %select{" "%select{private|fileprivate|internal|%error|%error}3|private or fileprivate}4" "|cannot be declared %select{%error|fileprivate|internal|public|open}3}2 " "because its type uses " "%select{a private|a fileprivate|an internal|%error|%error}5 type", (bool, bool, bool, Accessibility, bool, Accessibility)) WARNING(pattern_type_access_warn,none, "%select{%select{variable|constant}0|property}1 " "%select{should be declared %select{private|fileprivate|internal|%error|%error}5" "|should not be declared %select{in this context|fileprivate|internal|public|open}3}2 " "because its type uses " "%select{a private|a fileprivate|an internal|%error|%error}5 type", (bool, bool, bool, Accessibility, bool, Accessibility)) ERROR(pattern_type_access_inferred,none, "%select{%select{variable|constant}0|property}1 " "%select{must be declared %select{" "%select{private|fileprivate|internal|%error|%error}3|private or fileprivate}4" "|cannot be declared %select{%error|fileprivate|internal|public|open}3}2 " "because its type %6 uses " "%select{a private|a fileprivate|an internal|%error|%error}5 type", (bool, bool, bool, Accessibility, bool, Accessibility, Type)) WARNING(pattern_type_access_inferred_warn,none, "%select{%select{variable|constant}0|property}1 " "%select{should be declared %select{private|fileprivate|internal|%error|%error}5" "|should not be declared %select{in this context|fileprivate|internal|public|open}3}2 " "because its type %6 uses " "%select{a private|a fileprivate|an internal|%error|%error}5 type", (bool, bool, bool, Accessibility, bool, Accessibility, Type)) ERROR(pattern_binds_no_variables,none, "%select{property|global variable}0 declaration does not bind any " "variables", (unsigned)) // Generic types ERROR(unsupported_type_nested_in_generic_function,none, "type %0 cannot be nested in generic function %1", (Identifier, Identifier)) ERROR(unsupported_type_nested_in_generic_closure,none, "type %0 cannot be nested in closure in generic context", (Identifier)) ERROR(unsupported_type_nested_in_protocol,none, "type %0 cannot be nested in protocol %1", (Identifier, Identifier)) ERROR(unsupported_type_nested_in_protocol_extension,none, "type %0 cannot be nested in protocol extension of %1", (Identifier, Identifier)) ERROR(unsupported_nested_protocol,none, "protocol %0 cannot be nested inside another declaration", (Identifier)) // Type aliases ERROR(type_alias_underlying_type_access,none, "type alias %select{must be declared %select{" "%select{private|fileprivate|internal|%error|%error}2|private or fileprivate}3" "|cannot be declared %select{%error|fileprivate|internal|public|open}1}0 " "because its underlying type uses " "%select{a private|a fileprivate|an internal|%error|%error}2 type", (bool, Accessibility, Accessibility, bool)) WARNING(type_alias_underlying_type_access_warn,none, "type alias %select{should be declared " "%select{private|fileprivate|internal|%error|%error}2" "|should not be declared %select{%error|fileprivate|internal|public|open}1}0 " "because its underlying type uses " "%select{a private|a fileprivate|an internal|%error|%error}2 type", (bool, Accessibility, Accessibility, bool)) // Subscripts ERROR(subscript_type_access,none, "subscript %select{must be declared " "%select{private|fileprivate|internal|%error|%error}1" "|cannot be declared %select{%error|fileprivate|internal|public|open}1}0 " "because its %select{index|element type}3 uses " "%select{a private|a fileprivate|an internal|%error|%error}2 type", (bool, Accessibility, Accessibility, bool)) WARNING(subscript_type_access_warn,none, "subscript %select{should be declared " "%select{private|fileprivate|internal|%error|%error}2" "|should not be declared %select{in this context|fileprivate|internal|public|open}1}0 " "because its %select{index|element type}3 uses " "%select{a private|a fileprivate|an internal|%error|%error}2 type", (bool, Accessibility, Accessibility, bool)) // Functions ERROR(function_type_access,none, "%select{function|method|initializer}4 " "%select{must be declared %select{" "%select{private|fileprivate|internal|%error|%error}1|private or fileprivate}2" "|cannot be declared %select{%error|fileprivate|internal|public|open}1}0 " "because its %select{parameter|result}5 uses " "%select{a private|a fileprivate|an internal|%error|%error}3 type", (bool, Accessibility, bool, Accessibility, unsigned, bool)) WARNING(function_type_access_warn,none, "%select{function|method|initializer}4 " "%select{should be declared %select{private|fileprivate|internal|%error|%error}3" "|should not be declared %select{in this context|fileprivate|internal|public|open}1}0 " "because its %select{parameter|result}5 uses " "%select{a private|a fileprivate|an internal|%error|%error}3 type", (bool, Accessibility, bool, Accessibility, unsigned, bool)) ERROR(noreturn_not_supported,none, "'@noreturn' has been removed; functions that never return should have a " "return type of 'Never' instead", ()) // Extensions ERROR(non_nominal_extension,none, "non-nominal type %0 cannot be extended", (Type)) ERROR(extension_access_with_conformances,none, "%0 modifier cannot be used with extensions that declare " "protocol conformances", (DeclAttribute)) ERROR(extension_metatype,none, "cannot extend a metatype %0", (Type)) ERROR(extension_specialization,none, "constrained extension must be declared on the unspecialized generic " "type %0 with constraints specified by a 'where' clause", (Identifier)) ERROR(extension_stored_property,none, "extensions may not contain stored properties", ()) ERROR(extension_nongeneric_trailing_where,none, "trailing 'where' clause for extension of non-generic type %0", (Type)) ERROR(extension_constrained_inheritance,none, "extension of type %0 with constraints cannot have an " "inheritance clause", (Type)) ERROR(extension_protocol_inheritance,none, "extension of protocol %0 cannot have an inheritance clause", (Type)) ERROR(extension_protocol_via_typealias,none, "protocol %0 in the module being compiled cannot be extended via a " "type alias", (Type)) ERROR(extension_anyobject,none, "'AnyObject' protocol cannot be extended", ()) ERROR(objc_generic_extension_using_type_parameter,none, "extension of a generic Objective-C class cannot access the class's " "generic parameters at runtime", ()) NOTE(objc_generic_extension_using_type_parameter_here,none, "generic parameter used here", ()) // Protocols ERROR(type_does_not_conform,none, "type %0 does not conform to protocol %1", (Type, Type)) ERROR(cannot_use_nil_with_this_type,none, "nil cannot be used in context expecting type %0", (Type)) ERROR(use_of_equal_instead_of_equality,none, "use of '=' in a boolean context, did you mean '=='?", ()) ERROR(protocol_does_not_conform_objc,none, "using %0 as a concrete type conforming to protocol %1 is not supported", (Type, Type)) ERROR(protocol_does_not_conform_static,none, "%0 cannot be used as a type conforming to protocol %1 because %1 " "has static requirements", (Type, Type)) ERROR(protocol_derivation_is_broken,none, "protocol %0 is broken; cannot derive conformance for type %1", (Type, Type)) ERROR(type_does_not_inherit,none, "%0 requires that %1 inherit from %2", (Type, Type, Type)) NOTE(type_does_not_inherit_requirement,none, "requirement specified as %0 : %1%2", (Type, Type, StringRef)) ERROR(types_not_equal,none, "%0 requires the types %1 and %2 be equivalent", (Type, Type, Type)) NOTE(types_not_equal_requirement,none, "requirement specified as %0 == %1%2", (Type, Type, StringRef)) ERROR(non_class_cannot_conform_to_class_protocol,none, "non-class type %0 cannot conform to class protocol %1", (Type, Type)) ERROR(cf_class_cannot_conform_to_objc_protocol,none, "Core Foundation class %0 cannot conform to @objc protocol %1 because " "Core Foundation types are not classes in Objective-C", (Type, Type)) ERROR(objc_runtime_visible_cannot_conform_to_objc_protocol,none, "class %0 cannot conform to @objc protocol %1 because " "the class is only visible via the Objective-C runtime", (Type, Type)) ERROR(protocol_has_missing_requirements,none, "type %0 cannot conform to protocol %1 because it has requirements that " "cannot be satisfied", (Type, Type)) ERROR(requirement_restricts_self,none, "%0 requirement %1 cannot add constraint '%2%select{:|:| ==|:}3 %4' on " "'Self'", (DescriptiveDeclKind, DeclName, StringRef, unsigned, StringRef)) WARNING(requirement_restricts_self_swift3,none, "adding constraint '%2%select{:|:| ==|:}3 %4' on 'Self' via %0 " "requirement %1 is deprecated in Swift 3", (DescriptiveDeclKind, DeclName, StringRef, unsigned, StringRef)) ERROR(witness_argument_name_mismatch,none, "%select{method|initializer}0 %1 has different argument names from those " "required by protocol %2 (%3)", (bool, DeclName, Type, DeclName)) ERROR(witness_initializer_not_required,none, "initializer requirement %0 can only be satisfied by a `required` " "initializer in%select{| the definition of}1 non-final class %2", (DeclName, bool, Type)) ERROR(witness_initializer_failability,none, "non-failable initializer requirement %0" "%select{| in Objective-C protocol}1 cannot be satisfied by a " "failable initializer ('init%select{?|!}1')", (DeclName, bool)) ERROR(witness_self_non_subtype,none, "protocol %0 requirement %1 cannot be satisfied by a non-final class " "(%2) because it uses 'Self' in a non-parameter, non-result type " "position", (Type, DeclName, Type)) ERROR(witness_requires_dynamic_self,none, "method %0 in non-final class %1 must return `Self` to conform to " "protocol %2", (DeclName, Type, Type)) ERROR(witness_not_accessible_proto,none, "%select{initializer %1|method %1|%select{|setter for }2property %1" "|subscript%select{| setter}2}0 must be declared " "%select{%error|fileprivate|internal|public|%error}3 because it matches a " "requirement in %select{private|fileprivate|internal|public|%error}4 protocol " "%5", (RequirementKind, DeclName, bool, Accessibility, Accessibility, DeclName)) ERROR(witness_not_accessible_type,none, "%select{initializer %1|method %1|%select{|setter for }2property %1" "|subscript%select{| setter}2}0 must be as accessible as its enclosing " "type because it matches a requirement in protocol %5", (RequirementKind, DeclName, bool, Accessibility, Accessibility, DeclName)) ERROR(type_witness_not_accessible_proto,none, "%0 %1 must be declared %select{%error|fileprivate|internal|public|%error}2 " "because it matches a requirement in " "%select{%error|fileprivate|internal|public|%error}2 protocol %3", (DescriptiveDeclKind, DeclName, Accessibility, DeclName)) ERROR(type_witness_not_accessible_type,none, "%0 %1 must be as accessible as its enclosing type because it " "matches a requirement in protocol %3", (DescriptiveDeclKind, DeclName, Accessibility, DeclName)) ERROR(protocol_refine_access,none, "%select{protocol must be declared %select{" "%select{private|fileprivate|internal|%error|%error}2" "|private or fileprivate}3 because it refines" "|%select{%error|fileprivate|internal|public|%error}1 protocol cannot " "refine}0 %select{a private|a fileprivate|an internal|%error|%error}2 protocol", (bool, Accessibility, Accessibility, bool)) WARNING(protocol_refine_access_warn,none, "%select{protocol should be declared " "%select{private|fileprivate|internal|%error|%error}2 because it refines" "|%select{in this context|fileprivate|internal|public|%error}1 protocol should not " "refine}0 %select{a private|a fileprivate|an internal|%error|%error}2 protocol", (bool, Accessibility, Accessibility, bool)) ERROR(protocol_property_must_be_computed_var,none, "immutable property requirement must be declared as 'var' with a " "'{ get }' specifier", ()) ERROR(protocol_property_must_be_computed,none, "property in protocol must have explicit { get } or { get set } specifier", ()) NOTE(inherited_protocol_does_not_conform,none, "type %0 does not conform to inherited protocol %1", (Type, Type)) NOTE(no_witnesses,none, "protocol requires " "%select{initializer %1|function %1|property %1|subscript}0 with type %2" "%select{|; do you want to add a stub?}3", (RequirementKind, DeclName, Type, bool)) NOTE(missing_witnesses_general,none, "do you want to add protocol stubs?", ()) NOTE(ambiguous_witnesses,none, "multiple matching " "%select{initializers named %1|functions named %1|properties named %1|" "subscript operators}0 with type %2", (RequirementKind, DeclName, Type)) NOTE(ambiguous_witnesses_wrong_name,none, "multiple matching " "%select{initializers named %1|functions named %1|properties named %1|" "subscript operators}0 with type %2", (RequirementKind, DeclName, Type)) NOTE(no_witnesses_type,none, "protocol requires nested type %0; do you want to add it?", (Identifier)) NOTE(default_associated_type_req_fail,none, "default type %0 for associated type %1 (from protocol %2) " "does not %select{inherit from|conform to}4 %3", (Type, DeclName, Type, Type, bool)) ERROR(associated_type_access,none, "associated type in " "%select{%error|a fileprivate|an internal|a public|%error}0 protocol uses " "%select{a private|a fileprivate|an internal|%error|%error}1 type in its " "%select{default definition|requirement}2 ", (Accessibility, Accessibility, unsigned)) WARNING(associated_type_access_warn,none, "associated type in " "%select{a private|a fileprivate|an internal|a public|%error}0 protocol uses " "%select{a private|a fileprivate|an internal|%error|%error}1 type in its " "%select{default definition|requirement}2 ", (Accessibility, Accessibility, unsigned)) NOTE(bad_associated_type_deduction,none, "unable to infer associated type %0 for protocol %1", (DeclName, DeclName)) NOTE(associated_type_deduction_witness_failed,none, "inferred type %1 (by matching requirement %0) is invalid: " "does not %select{inherit from|conform to}3 %2", (DeclName, Type, DeclName, bool)) NOTE(ambiguous_associated_type_deduction,none, "ambiguous inference of associated type %0: %1 vs. %2", (DeclName, Type, Type)) NOTE(associated_type_deduction_witness,none, "matching requirement %0 to this declaration inferred associated type to " "%1", (DeclName, Type)) NOTE(associated_type_deduction_default,none, "using associated type default %0", (Type)) NOTE(ambiguous_witnesses_type,none, "multiple matching types named %0", (Identifier)) NOTE(protocol_witness_exact_match,none, "candidate exactly matches%0", (StringRef)) NOTE(protocol_witness_renamed,none, "rename to %0 to satisfy this requirement%1", (DeclName, StringRef)) NOTE(protocol_witness_kind_conflict,none, "candidate is not %select{an initializer|a function|a variable|" "a subscript}0", (RequirementKind)) NOTE(protocol_witness_type_conflict,none, "candidate has non-matching type %0%1", (Type, StringRef)) NOTE(protocol_witness_optionality_conflict,none, "candidate %select{type has|result type has|parameter type has|" "parameter types have|result and parameter types have}0 incorrect " "optionality%1", (unsigned, StringRef)) ERROR(err_protocol_witness_optionality,none, "%select{type|result|parameter|parameters|" "result and parameters}0 of %1 %select{has|has|has|have|have|}0" " different optionality than required by protocol %2", (unsigned, DeclName, DeclName)) WARNING(warn_protocol_witness_optionality,none, "%select{type|result|parameter|parameters|" "result and parameters}0 of %1 %select{has|has|has|have|have|}0" " different optionality than expected by protocol %2", (unsigned, DeclName, DeclName)) NOTE(protocol_witness_static_conflict,none, "candidate operates on %select{a type|an instance}0, not " "%select{an instance|a type}0 as required", (bool)) NOTE(protocol_witness_prefix_postfix_conflict,none, "candidate is %select{|prefix, |postfix, }1not " "%select{prefix|postfix}0 as required", (bool, unsigned)) NOTE(protocol_witness_mutating_conflict,none, "candidate is marked 'mutating' but protocol does not allow it", ()) NOTE(protocol_witness_settable_conflict,none, "candidate is not settable, but protocol requires it", ()) NOTE(protocol_witness_rethrows_conflict,none, "candidate is not 'rethrows', but protocol requires it", ()) NOTE(protocol_witness_throws_conflict,none, "candidate throws, but protocol does not allow it", ()) NOTE(protocol_witness_not_objc,none, "candidate is explicitly '@nonobjc'", ()) NOTE(protocol_witness_type,none, "possibly intended match", ()) NOTE(protocol_witness_nonconform_type,none, "possibly intended match %0 does not " "%select{inherit from|conform to}2 %1", (Type, Type, bool)) NOTE(protocol_requirement_here,none, "requirement %0 declared here", (DeclName)) NOTE(protocol_conformance_here,none, "%select{|class }0%1 declares conformance to protocol %2 here", (bool, DeclName, DeclName)) NOTE(declared_protocol_conformance_here,none, "%select{%0 inherits conformance to protocol %2 from superclass|" "%0 declares conformance to protocol %2|" "%0 implicitly conforms to protocol %2 (via conformance to %3)|" "%0 implicitly conforms to protocol %2}1 here", (Type, unsigned, DeclName, DeclName)) WARNING(witness_unavailable,none, "unavailable %0 %1 was used to satisfy a requirement of protocol %2", (DescriptiveDeclKind, DeclName, DeclName)) ERROR(redundant_conformance,none, "redundant conformance of %0 to protocol %1", (Type, DeclName)) // "Near matches" WARNING(optional_req_near_match,none, "%0 %1 nearly matches optional requirement %2 of protocol %3", (DescriptiveDeclKind, DeclName, DeclName, DeclName)) NOTE(optional_req_nonobjc_near_match_add_objc,none, "add '@objc' to provide an Objective-C entrypoint", ()) NOTE(optional_req_near_match_move,none, "move %0 to %select{an|another}1 extension to silence this warning", (DeclName, unsigned)) NOTE(optional_req_near_match_nonobjc,none, "add '@nonobjc' to silence this %select{warning|error}0", (bool)) NOTE(optional_req_near_match_accessibility,none, "make %0 %select{ERROR|private|private|non-public|non-public}1 to silence this " "warning", (DeclName, Accessibility)) // Protocols and existentials ERROR(assoc_type_outside_of_protocol,none, "associated type %0 can only be used with a concrete type or " "generic parameter base", (Identifier)) ERROR(typealias_outside_of_protocol,none, "type alias %0 can only be used with a concrete type or " "generic parameter base", (Identifier)) ERROR(circular_protocol_def,none, "circular protocol inheritance %0", (StringRef)) NOTE(protocol_here,none, "protocol %0 declared here", (Identifier)) ERROR(objc_protocol_inherits_non_objc_protocol,none, "@objc protocol %0 cannot refine non-@objc protocol %1", (Type, Type)) WARNING(protocol_composition_with_postfix,none, "protocol-constrained type with postfix '%0' is ambiguous " "and will be rejected in future version of Swift", (StringRef)) ERROR(invalid_protocol_composition_member,none, "non-protocol, non-class type %0 cannot be used within a " "protocol-constrained type", (Type)) ERROR(protocol_composition_one_class,none, "protocol-constrained type cannot contain class %0 because it already " "contains class %1", (Type, Type)) ERROR(requires_conformance_nonprotocol,none, "type %0 constrained to non-protocol type %1", (TypeLoc, TypeLoc)) ERROR(requires_not_suitable_archetype,none, "%select{|first |second }0type %1 in %select{conformance|same-type}2 " "requirement does not refer to a generic parameter or associated type", (int, TypeLoc, int)) ERROR(requires_no_same_type_archetype,none, "neither type in same-type refers to a generic parameter or " "associated type", ()) ERROR(requires_generic_params_made_equal,none, "same-type requirement makes generic parameters %0 and %1 equivalent", (Type, Type)) ERROR(requires_generic_param_made_equal_to_concrete,none, "same-type requirement makes generic parameter %0 non-generic", (Type)) ERROR(recursive_type_reference,none, "%0 %1 references itself", (DescriptiveDeclKind, Identifier)) ERROR(recursive_requirement_reference,none, "type may not reference itself as a requirement",()) ERROR(recursive_same_type_constraint,none, "same-type constraint %0 == %1 is recursive", (Type, Type)) ERROR(recursive_superclass_constraint,none, "superclass constraint %0 : %1 is recursive", (Type, Type)) ERROR(requires_same_type_conflict,none, "%select{associated type|generic parameter}0 %1 cannot be equal to " "both %2 and %3", (bool, Type, Type, Type)) ERROR(requires_generic_param_same_type_does_not_conform,none, "same-type constraint type %0 does not conform to required protocol %1", (Type, Identifier)) ERROR(requires_same_concrete_type,none, "generic signature requires types %0 and %1 to be the same", (Type, Type)) ERROR(protocol_typealias_conflict, none, "type alias %0 requires types %1 and %2 to be the same", (Identifier, Type, Type)) WARNING(redundant_conformance_constraint,none, "redundant conformance constraint %0: %1", (Type, ProtocolDecl *)) NOTE(redundant_conformance_here,none, "conformance constraint %1: %2 %select{written here|implied here|" "inferred from type here}0", (unsigned, Type, ProtocolDecl *)) WARNING(redundant_same_type_to_concrete,none, "redundant same-type constraint %0 == %1", (Type, Type)) NOTE(same_type_redundancy_here,none, "same-type constraint %1 == %2 %select{written here|implied here|" "inferred from type here}0", (unsigned, Type, Type)) ERROR(requires_superclass_conflict,none, "%select{generic parameter |protocol |}0%1 cannot be a subclass of both " "%2 and %3", (unsigned, Type, Type, Type)) WARNING(redundant_superclass_constraint,none, "redundant superclass constraint %0 : %1", (Type, Type)) NOTE(superclass_redundancy_here,none, "superclass constraint %1 : %2 %select{written here|implied here|" "inferred from type here}0", (unsigned, Type, Type)) ERROR(conflicting_layout_constraints,none, "%select{generic parameter |protocol |}0%1 has conflicting layout " "constraints %2 and %3", (unsigned, Type, LayoutConstraint, LayoutConstraint)) WARNING(redundant_layout_constraint,none, "redundant layout constraint %0 : %1", (Type, LayoutConstraint)) NOTE(previous_layout_constraint, none, "layout constraint constraint %1 : %2 %select{written here|implied here|" "inferred from type here}0", (unsigned, Type, LayoutConstraint)) WARNING(redundant_same_type_constraint,none, "redundant same-type constraint %0 == %1", (Type, Type)) NOTE(previous_same_type_constraint, none, "previous same-type constraint %1 == %2 " "%select{written here|implied here|inferred from type here}0", (unsigned, Type, Type)) WARNING(inherited_associated_type_redecl,none, "redeclaration of associated type %0 from protocol %1 is better " "expressed as a 'where' clause on the protocol", (DeclName, Type)) WARNING(typealias_override_associated_type,none, "typealias overriding associated type %0 from protocol %1 is better " "expressed as same-type constraint on the protocol", (DeclName, Type)) ERROR(generic_param_access,none, "%0 %select{must be declared %select{" "%select{private|fileprivate|internal|%error|%error}3|private or fileprivate}4" "|cannot be declared %select{%error|fileprivate|internal|public|open}2}1 " "because its generic %select{parameter|requirement}5 uses " "%select{a private|a fileprivate|an internal|%error|%error}3 type", (DescriptiveDeclKind, bool, Accessibility, Accessibility, bool, bool)) WARNING(generic_param_access_warn,none, "%0 %select{should be declared " "%select{private|fileprivate|internal|%error|%error}3" "|should not be declared %select{in this context|fileprivate|internal|public|open}2}1 " "because its generic %select{parameter|requirement}5 uses " "%select{a private|a fileprivate|an internal|%error|%error}3 type", (DescriptiveDeclKind, bool, Accessibility, Accessibility, bool, bool)) ERROR(override_multiple_decls_base,none, "declaration %0 cannot override more than one superclass declaration", (DeclName)) ERROR(override_multiple_decls_arg_mismatch,none, "declaration %0 has different argument names from any potential " "overrides", (DeclName)) NOTE(overridden_near_match_here,none, "potential overridden %0 %1 here", (DescriptiveDeclKind, DeclName)) ERROR(override_decl_extension,none, "declarations %select{in extensions|from extensions}0 cannot " "%select{override|be overridden}0 yet", (bool)) NOTE(overridden_here,none, "overridden declaration is here", ()) ERROR(override_objc_type_mismatch_method,none, "overriding method with selector %0 has incompatible type %1", (ObjCSelector, Type)) ERROR(override_objc_type_mismatch_subscript,none, "overriding %select{|indexed |keyed }0subscript with incompatible type " "%1", (unsigned, Type)) NOTE(overridden_here_with_type,none, "overridden declaration here has type %0", (Type)) ERROR(missing_override,none, "overriding declaration requires an 'override' keyword", ()) ERROR(multiple_override,none, "%0 has already been overridden", (DeclName)) NOTE(multiple_override_prev,none, "%0 previously overridden here", (DeclName)) ERROR(override_unavailable,none, "cannot override %0 which has been marked unavailable", (Identifier)) ERROR(override_unavailable_msg, none, "cannot override %0 which has been marked unavailable: %1", (Identifier, StringRef)) ERROR(override_less_available,none, "overriding %0 must be as available as declaration it overrides", (Identifier)) ERROR(override_accessor_less_available,none, "overriding %0 for %1 must be as available as declaration it overrides", (DescriptiveDeclKind, Identifier)) ERROR(override_let_property,none, "cannot override immutable 'let' property %0 with the getter of a 'var'", (Identifier)) ERROR(override_not_accessible,none, "%select{|setter of }0overriding %1 must be as accessible as " "%select{its enclosing type|the declaration it overrides}2", (bool, DescriptiveDeclKind, bool)) ERROR(override_of_non_open,none, "overriding non-open %0 outside of its defining module", (DescriptiveDeclKind)) ERROR(method_does_not_override,none, "method does not override any method from its superclass", ()) ERROR(property_does_not_override,none, "property does not override any property from its superclass", ()) ERROR(subscript_does_not_override,none, "subscript does not override any subscript from its superclass", ()) ERROR(initializer_does_not_override,none, "initializer does not override a designated initializer from its " "superclass", ()) ERROR(failable_initializer_override,none, "failable initializer %0 cannot override a non-failable initializer", (DeclName)) NOTE(nonfailable_initializer_override_here,none, "non-failable initializer %0 overridden here", (DeclName)) NOTE(property_override_here,none, "attempt to override property here", ()) NOTE(subscript_override_here,none, "attempt to override subscript here", ()) NOTE(convenience_init_override_here,none, "attempt to override convenience initializer here", ()) NOTE(override_type_mismatch_with_fixits,none, "type does not match superclass %0 with type %1", (DescriptiveDeclKind, Type)) NOTE(override_type_mismatch_with_fixits_init,none, "type does not match superclass initializer with %select{no arguments|argument %1|arguments %1}0", (unsigned, Type)) ERROR(override_nonclass_decl,none, "'override' can only be specified on class members", ()) ERROR(override_property_type_mismatch,none, "property %0 with type %1 cannot override a property with type %2", (Identifier, Type, Type)) ERROR(override_with_stored_property,none, "cannot override with a stored property %0", (Identifier)) ERROR(observing_readonly_property,none, "cannot observe read-only property %0; it can't change", (Identifier)) ERROR(override_mutable_with_readonly_property,none, "cannot override mutable property with read-only property %0", (Identifier)) ERROR(override_argument_name_mismatch,none, "argument names for %select{method|initializer}0 %1 do not match those " "of overridden %select{method|initializer}0 %2", (bool, DeclName, DeclName)) ERROR(override_ownership_mismatch,none, "cannot override %select{strong|weak|unowned|unowned(unsafe)}0 property " "with %select{strong|weak|unowned|unowned(unsafe)}1 property", (/*Ownership*/unsigned, /*Ownership*/unsigned)) ERROR(override_class_declaration_in_extension,none, "cannot override a non-dynamic class declaration from an extension", ()) WARNING(override_class_declaration_in_extension_warning,none, "cannot override a non-dynamic class declaration from an extension", ()) ERROR(override_throws,none, "cannot override non-throwing %select{method|initializer}0 with " "throwing %select{method|initializer}0", (bool)) ERROR(override_throws_objc,none, "overriding a throwing @objc %select{method|initializer}0 with " "a non-throwing %select{method|initializer}0 is not supported", (bool)) ERROR(override_optional_mismatch,none, "cannot override %0 %select{parameter|index}1 of type %2 with " "non-optional type %3", (DescriptiveDeclKind, bool, Type, Type)) ERROR(override_optional_result_mismatch,none, "cannot override %0 %select{result|element}1 type %2 with " "optional type %3", (DescriptiveDeclKind, bool, Type, Type)) WARNING(override_unnecessary_IUO,none, "overriding %0 parameter of type %1 with implicitly unwrapped optional " "type %2", (DescriptiveDeclKind, Type, Type)) WARNING(override_unnecessary_result_IUO,none, "overriding %0 optional result type %1 with implicitly unwrapped " "optional type %2", (DescriptiveDeclKind, Type, Type)) NOTE(override_unnecessary_IUO_remove,none, "remove '!' to make the parameter required", ()) NOTE(override_unnecessary_IUO_use_strict,none, "use '?' to make the result optional", ()) NOTE(override_unnecessary_IUO_silence,none, "add parentheses to silence this warning", ()) ERROR(iuo_in_illegal_position,none, "implicitly unwrapped optionals are only allowed at top level and as " "function results", ()) ERROR(override_mutable_covariant_property,none, "cannot override mutable property %0 of type %1 with covariant type %2", (Identifier, Type, Type)) ERROR(override_mutable_covariant_subscript,none, "cannot override mutable subscript of type %0 with covariant type %1", (Type, Type)) ERROR(decl_already_final,none, "static declarations are already final", ()) ERROR(open_decl_cannot_be_final,none, "%0 cannot be declared both 'final' and 'open'", (DescriptiveDeclKind)) WARNING(override_swift3_objc_inference,none, "override of %0 %1 from extension of %2 depends on deprecated " "inference of '@objc'", (DescriptiveDeclKind, DeclName, Identifier)) // Inheritance ERROR(duplicate_inheritance,none, "duplicate inheritance from %0", (Type)) ERROR(multiple_inheritance,none, "multiple inheritance from classes %0 and %1", (Type, Type)) ERROR(non_class_inheritance,none, "non-class type %0 cannot inherit from class %1", (Type, Type)) ERROR(extension_class_inheritance,none, "extension of type %0 cannot inherit from class %1", (Type, Type)) ERROR(inheritance_from_non_protocol_or_class,none, "inheritance from non-protocol, non-class type %0", (Type)) ERROR(inheritance_from_non_protocol,none, "inheritance from non-protocol type %0", (Type)) ERROR(superclass_not_first,none, "superclass %0 must appear first in the inheritance clause", (Type)) ERROR(superclass_not_open,none, "cannot inherit from non-open class %0 outside of its defining module", (Type)) NOTE(superclass_here,none,"superclass is declared here", ()) ERROR(superclass_of_open_not_open,none, "superclass %0 of open class must be open", (Type)) ERROR(circular_class_inheritance,none, "circular class inheritance %0", (StringRef)) NOTE(class_here,none, "class %0 declared here", (Identifier)) ERROR(inheritance_from_final_class,none, "inheritance from a final class %0", (Identifier)) ERROR(inheritance_from_unspecialized_objc_generic_class,none, "inheritance from a generic Objective-C class %0 must bind " "type parameters of %0 to specific concrete types", (Identifier)) ERROR(inheritance_from_cf_class,none, "cannot inherit from Core Foundation type %0", (Identifier)) ERROR(inheritance_from_objc_runtime_visible_class,none, "cannot inherit from class %0 because it is only visible via the " "Objective-C runtime", (Identifier)) // Enums ERROR(enum_case_access,none, "enum case in %select{%error|a fileprivate|an internal|a public|%error}0 enum " "uses %select{a private|a fileprivate|an internal|%error|%error}1 type", (Accessibility, Accessibility)) WARNING(enum_case_access_warn,none, "enum case in %select{a private|a fileprivate|an internal|a public|%error}0 enum " "uses %select{a private|a fileprivate|an internal|%error|%error}1 type", (Accessibility, Accessibility)) ERROR(enum_stored_property,none, "enums may not contain stored properties", ()) // Enum raw types ERROR(multiple_enum_raw_types,none, "multiple enum raw types %0 and %1", (Type, Type)) ERROR(circular_enum_inheritance,none, "circular enum raw types %0", (StringRef)) ERROR(raw_type_not_first,none, "raw type %0 must appear first in the enum inheritance clause", (Type)) ERROR(raw_type_not_literal_convertible,none, "raw type %0 is not expressible by any literal", (Type)) ERROR(enum_raw_type_not_equatable,none, "RawRepresentable conformance cannot be synthesized because raw type %0 is not " "Equatable", (Type)) ERROR(enum_raw_type_nonconforming_and_nonsynthable,none, "%0 declares raw type %1, but does not conform to RawRepresentable " "and conformance could not be synthesized", (Type, Type)) NOTE(enum_declares_rawrep_with_raw_type,none, "%0 declares raw type %1, which implies RawRepresentable", (Type, Type)) ERROR(enum_raw_type_access,none, "enum %select{must be declared %select{" "%select{private|fileprivate|internal|%error|%error}2|private or fileprivate}3" "|cannot be declared %select{%error|fileprivate|internal|public|open}1}0 " "because its raw type uses " "%select{a private|a fileprivate|an internal|%error|%error}2 type", (bool, Accessibility, Accessibility, bool)) WARNING(enum_raw_type_access_warn,none, "enum %select{should be declared " "%select{private|fileprivate|internal|%error|%error}2" "|should not be declared %select{in this context|fileprivate|internal|public|open}1}0 " "because its raw type uses " "%select{a private|a fileprivate|an internal|%error|%error}2 type", (bool, Accessibility, Accessibility, bool)) NOTE(enum_here,none, "enum %0 declared here", (Identifier)) ERROR(empty_enum_raw_type,none, "an enum with no cases cannot declare a raw type", ()) ERROR(enum_raw_value_without_raw_type,none, "enum case cannot have a raw value if the enum does not have a raw type", ()) ERROR(enum_with_raw_type_case_with_argument,none, "enum with raw type cannot have cases with arguments", ()) NOTE(enum_raw_type_here,none, "declared raw type %0 here", (Type)) ERROR(objc_enum_no_raw_type,none, "'@objc' enum must declare an integer raw type", ()) ERROR(objc_enum_raw_type_not_integer,none, "'@objc' enum raw type %0 is not an integer type", (Type)) ERROR(enum_non_integer_raw_value_auto_increment,none, "enum case must declare a raw value when the preceding raw value is not an integer", ()) ERROR(enum_non_integer_convertible_raw_type_no_value,none, "enum cases require explicit raw values when the raw type is not " "expressible by integer or string literal", ()) ERROR(enum_raw_value_not_unique,none, "raw value for enum case is not unique", ()) NOTE(enum_raw_value_used_here,none, "raw value previously used here", ()) NOTE(enum_raw_value_incrementing_from_here,none, "raw value auto-incremented from here",()) NOTE(enum_raw_value_incrementing_from_zero,none, "raw value implicitly auto-incremented from zero",()) // Derived conformances ERROR(broken_raw_representable_requirement,none, "RawRepresentable protocol is broken: unexpected requirement", ()) ERROR(broken_equatable_requirement,none, "Equatable protocol is broken: unexpected requirement", ()) ERROR(broken_hashable_requirement,none, "Hashable protocol is broken: unexpected requirement", ()) ERROR(broken_errortype_requirement,none, "Error protocol is broken: unexpected requirement", ()) ERROR(broken_int_hashable_conformance,none, "Int type is broken: does not conform to Hashable", ()) ERROR(broken_int_integer_literal_convertible_conformance,none, "Int type is broken: does not conform to ExpressibleByIntegerLiteral", ()) ERROR(no_equal_overload_for_int,none, "no overload of '==' for Int", ()) ERROR(broken_coding_key_requirement,none, "CodingKey protocol is broken: unexpected requirement", ()) ERROR(broken_encodable_requirement,none, "Encodable protocol is broken: unexpected requirement", ()) ERROR(broken_decodable_requirement,none, "Decodable protocol is broken: unexpected requirement", ()) // Dynamic Self ERROR(dynamic_self_non_method,none, "%select{global|local}0 function cannot return 'Self'", (bool)) ERROR(self_in_nominal,none, "'Self' is only available in a protocol or as the result of a " "method in a class; did you mean '%0'?", (StringRef)) // Duplicate declarations ERROR(duplicate_enum_element,none, "duplicate definition of enum element",()) // Property behaviors ERROR(property_behavior_not_protocol,none, "property behavior name must refer to a protocol", ()) ERROR(property_behavior_protocol_reqt_ambiguous,none, "property behavior protocol has ambiguous %0 member", (Identifier)) NOTE(property_behavior_protocol_reqt_here,none, "%0 declared here", (Identifier)) ERROR(property_behavior_protocol_no_value,none, "property behavior protocol does not have a 'value' property", ()) ERROR(property_behavior_protocol_no_initStorage,none, "property behavior protocol has a 'storage' requirement but does not " "have a static 'initStorage' method with the expected type %0 or %1", (Type, Type)) ERROR(property_behavior_unknown_requirement,none, "property behavior protocol %0 has non-behavior requirement %1", (Identifier, Identifier)) NOTE(property_behavior_unknown_requirement_here,none, "declared here", ()) NOTE(self_conformance_required_by_property_behavior,none, "conformance to %0 required to contain an instance property with " "behavior %1", (Identifier, Identifier)) NOTE(value_conformance_required_by_property_behavior,none, "behavior %1 requires property type to conform to protocol %0", (Identifier, Identifier)) ERROR(property_behavior_with_self_requirement_not_in_type,none, "property behavior %0 can only be used on instance properties " "because it has 'Self' requirements", (Identifier)) ERROR(property_behavior_with_feature_not_supported,none, "property behavior %0 with %1 is not supported outside of " "type contexts", (Identifier, StringRef)) ERROR(property_behavior_value_type_doesnt_match,none, "property behavior %0 provides 'value' property implementation with " "type %1 that doesn't match type %2 of declared property %3", (Identifier, Type, Identifier, Type)) NOTE(property_behavior_value_decl_here,none, "'value' property declared here", ()) ERROR(property_behavior_invalid_parameter_reqt,none, "property behavior %0 has a 'parameter' requirement that is " "static or generic", (Identifier)) ERROR(property_behavior_requires_parameter,none, "property behavior %0 requires a parameter in the declaration of %1", (Identifier, Identifier)) ERROR(property_behavior_invalid_initializer,none, "initializer expression provided, but property behavior %0 does not " "use it", (Identifier)) ERROR(property_behavior_unsupported_initializer,none, "property behaviors do not support destructuring initialization of " "multiple properties", ()) ERROR(property_behavior_invalid_parameter,none, "parameter expression provided, but property behavior %0 does not " "use it", (Identifier)) ERROR(property_behavior_conformance_broken,none, "property behavior for %0 in type %1 is broken", (DeclName, Type)) //------------------------------------------------------------------------------ // Type Check Attributes //------------------------------------------------------------------------------ ERROR(attr_only_one_decl_kind,none, "%0 may only be used on '%1' declarations", (DeclAttribute,StringRef)) ERROR(attr_only_on_parameters,none, "%0 may only be used on parameters", (StringRef)) ERROR(attr_not_on_variadic_parameters,none, "%0 may not be used on variadic parameters", (StringRef)) ERROR(override_final,none, "%0 overrides a 'final' %1", (DescriptiveDeclKind, DescriptiveDeclKind)) ERROR(override_static,none, "cannot override %0", (DescriptiveDeclKind)) ERROR(member_cannot_be_final,none, "only classes and class members may be marked with 'final'", ()) WARNING(protocol_extension_cannot_be_final,none, "functions in a protocol extension do not need to be marked with 'final'", ()) ERROR(final_not_allowed_here,none, "'final' may only be applied to classes, properties, methods, and " "subscripts", ()) ERROR(final_not_on_accessors,none, "'final' cannot be applied to accessors, it must be put on the " "%select{var|let|subscript}0", (unsigned)) ERROR(override_rethrows_with_non_rethrows,none, "override of 'rethrows' %select{method|initializer}0 should also " "be 'rethrows'", (bool)) ERROR(rethrows_without_throwing_parameter,none, "'rethrows' function must take a throwing function argument", ()) ERROR(autoclosure_function_type,none, "@autoclosure may only be applied to values of function type", ()) ERROR(autoclosure_function_input_nonunit,none, "autoclosure argument type must be '()'", ()) // FIXME: drop these when we drop @noescape ERROR(noescape_function_type,none, "@noescape may only be applied to parameters of function type", ()) ERROR(noescape_implied_by_autoclosure,none, "@noescape is implied by @autoclosure and should not be " "redundantly specified", ()) ERROR(noescape_conflicts_escaping_autoclosure,none, "@noescape conflicts with @autoclosure(escaping)", ()) ERROR(escaping_non_function_parameter,none, "@escaping attribute may only be used in function parameter position", ()) NOTE(escaping_optional_type_argument, none, "closure is already escaping in optional type argument", ()) // NSManaged attribute ERROR(attr_NSManaged_not_instance_member,none, "@NSManaged only allowed on an instance property or method", ()) ERROR(attr_NSManaged_not_stored,none, "@NSManaged not allowed on %select{computed|observing|addressed}0 " "properties", (unsigned)) ERROR(attr_NSManaged_let_property,none, "@NSManaged not allowed on a 'let' property", ()) ERROR(attr_NSManaged_initial_value,none, "@NSManaged property cannot have an initial value", ()) ERROR(attr_NSManaged_NSCopying,none, "@NSManaged property cannot also be marked @NSCopying", ()) ERROR(attr_NSManaged_method_body,none, "@NSManaged method cannot have a body; it must be provided at runtime",()) // NSCopying attribute ERROR(nscopying_only_on_class_properties,none, "@NSCopying may only be used on properties in classes", ()) ERROR(nscopying_only_mutable,none, "@NSCopying requires property to be mutable", ()) ERROR(nscopying_only_stored_property,none, "@NSCopying is only valid on stored properties", ()) ERROR(nscopying_doesnt_conform,none, "@NSCopying is only valid with types that conform to" " the NSCopying protocol", ()) // UIApplicationMain/NSApplicationMain attribute #define SELECT_APPLICATION_MAIN "select{'UIApplicationMain'|'NSApplicationMain'}" #define SELECT_APPLICATION_DELEGATE "select{'UIApplicationDelegate'|'NSApplicationDelegate'}" ERROR(attr_ApplicationMain_not_ApplicationDelegate,none, "%" SELECT_APPLICATION_MAIN "0 class must conform to the %" SELECT_APPLICATION_DELEGATE "0 protocol", (unsigned)) ERROR(attr_generic_ApplicationMain_not_supported,none, "generic %" SELECT_APPLICATION_MAIN "0 classes are not supported", (unsigned)) ERROR(attr_ApplicationMain_multiple,none, "%" SELECT_APPLICATION_MAIN "0 attribute can only apply to one class in a module", (unsigned)) ERROR(attr_ApplicationMain_with_script,none, "%" SELECT_APPLICATION_MAIN "0 attribute cannot be used in a module that contains " "top-level code", (unsigned)) NOTE(attr_ApplicationMain_script_here,none, "top-level code defined in this source file", ()) #undef SELECT_APPLICATION_MAIN #undef SELECT_APPLICATION_DELEGATE // lazy ERROR(lazy_not_on_let,none, "'lazy' cannot be used on a let", ()) ERROR(lazy_not_on_computed,none, "'lazy' may not be used on a computed property", ()) ERROR(lazy_on_already_lazy_global,none, "'lazy' may not be used on an already-lazy global", ()) ERROR(lazy_not_in_protocol,none, "'lazy' isn't allowed on a protocol requirement", ()) ERROR(lazy_requires_initializer,none, "lazy properties must have an initializer", ()) ERROR(lazy_requires_single_var,none, "'lazy' cannot destructure an initializer", ()) ERROR(lazy_must_be_property,none, "lazy is only valid for members of a struct or class", ()) ERROR(lazy_not_observable,none, "lazy properties may not have observers", ()) // Debugger function attribute. ERROR(attr_for_debugger_support_only,none, "@LLDBDebuggerSupport may only be used when debugger support is on", ()) // @_implements ERROR(implements_attr_protocol_lacks_member,none, "protocol %0 has no member %1", (DeclName, DeclName)) ERROR(implements_attr_non_protocol_type,none, "non-protocol type in @_implements attribute", ()) ERROR(implements_attr_protocol_not_conformed_to,none, "containing type %0 does not conform to protocol %1", (DeclName, DeclName)) //------------------------------------------------------------------------------ // Type Check Expressions //------------------------------------------------------------------------------ NOTE(found_candidate,none, "found this candidate", ()) NOTE(found_candidate_type,none, "found candidate with type %0", (Type)) ERROR(no_MaxBuiltinIntegerType_found,none, "standard library error: _MaxBuiltinIntegerType is not properly defined", ()) ERROR(no_MaxBuiltinFloatType_found,none, "standard library error: _MaxBuiltinFloatType is not properly defined", ()) ERROR(no_member_of_module,none, "module %0 has no member named %1", (Identifier, DeclName)) ERROR(super_with_no_base_class,none, "'super' members cannot be referenced in a root class", ()) ERROR(bad_init_ref_base, none, "'init' can only refer to the initializers of " "'self'%select{| or 'super'}0", (bool)) ERROR(init_delegation_outside_initializer,none, "initializer delegation can only occur within an initializer", ()) ERROR(init_delegates_and_chains,none, "initializer cannot both delegate ('self.init') and chain to a " "superclass initializer ('super.init')", ()) NOTE(init_delegation_or_chain,none, "previous %select{delegation|chaining}0 call is here", (bool)) ERROR(delegating_convenience_super_init,none, "convenience initializer for %0 must delegate (with 'self.init') rather " "than chaining to a superclass initializer (with 'super.init')", (Type)) ERROR(delegating_designated_init,none, "designated initializer for %0 cannot delegate (with 'self.init'); " "did you mean this to be a convenience initializer?", (Type)) NOTE(delegation_here,none, "delegation occurs here", ()) ERROR(chain_convenience_init,none, "must call a designated initializer of the superclass %0", (Type)) ERROR(delegate_chain_nonoptional_to_optional,none, "a non-failable initializer cannot %select{delegate|chain}0 to " "failable initializer %1 written with 'init?'", (bool, DeclName)) NOTE(init_force_unwrap,none, "force potentially-failing result with '!'", ()) NOTE(init_propagate_failure,none, "propagate the failure with 'init?'", ()) ERROR(delegate_chain_nonoptional_to_optional_try,none, "a non-failable initializer cannot use 'try?' to " "%select{delegate|chain}0 to another initializer", (bool)) NOTE(init_delegate_force_try,none, "force potentially-failing result with 'try!'", ()) ERROR(init_delegation_nested,none, "%select{initializer delegation ('self.init')|" "initializer chaining ('super.init')}0 cannot be nested in another " "%select{expression|statement}1", (bool, bool)) NOTE(convenience_init_here,none, "convenience initializer is declared here", ()) ERROR(designated_init_in_extension,none, "designated initializer cannot be declared in an extension of %0; " "did you mean this to be a convenience initializer?", (Type)) ERROR(enumstruct_convenience_init,none, "delegating initializers in %0 are not marked with 'convenience'", (StringRef)) ERROR(nonclass_convenience_init,none, "convenience initializer not allowed in non-class type %0", (Type)) ERROR(cfclass_convenience_init,none, "convenience initializers are not supported in extensions of CF types", ()) ERROR(dynamic_construct_class,none, "constructing an object of class type %0 with a metatype value must use " "a 'required' initializer", (Type)) NOTE(note_nonrequired_initializer,none, "selected %select{non-required|implicit}0 initializer %1", (bool, DeclName)) ERROR(construct_protocol_value,none, "value of type %0 is a protocol; it cannot be instantiated", (Type)) ERROR(construct_protocol_by_name,none, "protocol type %0 cannot be instantiated", (Type)) // Operators ERROR(unknown_binop,none, "operator is not a known binary operator", ()) ERROR(non_associative_adjacent_operators,none, "adjacent operators are in non-associative precedence group %0", (Identifier)) ERROR(unordered_adjacent_operators,none, "adjacent operators are in unordered precedence groups %0 and %1", (Identifier, Identifier)) ERROR(missing_builtin_precedence_group,none, "broken standard library: missing builtin precedence group %0", (Identifier)) // If you change this, also change enum TryKindForDiagnostics. #define TRY_KIND_SELECT(SUB) "%select{try|try!|try?}" #SUB ERROR(try_rhs,none, "'" TRY_KIND_SELECT(0) "' cannot appear to the right of a " "non-assignment operator", (unsigned)) ERROR(try_if_rhs_noncovering,none, "'" TRY_KIND_SELECT(0) "' following conditional operator does not cover " "everything to its right", (unsigned)) ERROR(try_assign_rhs_noncovering,none, "'" TRY_KIND_SELECT(0) "' following assignment operator does not cover " "everything to its right", (unsigned)) ERROR(broken_bool,none, "type 'Bool' is broken", ()) WARNING(inject_forced_downcast,none, "treating a forced downcast to %0 as optional will never produce 'nil'", (Type)) NOTE(forced_to_conditional_downcast,none, "use 'as?' to perform a conditional downcast to %0", (Type)) NOTE(silence_inject_forced_downcast,none, "add parentheses around the cast to silence this warning", ()) ERROR(conditional_downcast_foreign,none, "conditional downcast to CoreFoundation type %0 will always succeed", (Type)) ERROR(optional_used_as_boolean,none, "optional type %0 cannot be used as a boolean; " "test for '!= nil' instead", (Type)) ERROR(interpolation_missing_proto,none, "string interpolation requires the protocol '_ExpressibleByStringInterpolation' to be defined", ()) ERROR(interpolation_broken_proto,none, "protocol '_ExpressibleByStringInterpolation' is broken", ()) ERROR(object_literal_broken_proto,none, "object literal protocol is broken", ()) ERROR(discard_expr_outside_of_assignment,none, "'_' can only appear in a pattern or on the left side of an assignment", ()) ERROR(inout_expr_outside_of_call,none, "'&' can only appear immediately in a call argument list", ()) ERROR(collection_literal_heterogeneous,none, "heterogeneous collection literal could only be inferred to %0; add" " explicit type annotation if this is intentional", (Type)) ERROR(collection_literal_empty,none, "empty collection literal requires an explicit type", ()) ERROR(unresolved_member_no_inference,none, "reference to member %0 cannot be resolved without a contextual type", (DeclName)) ERROR(unresolved_collection_literal,none, "cannot infer type for empty collection literal without a " "contextual type", ()) ERROR(unresolved_nil_literal,none, "'nil' requires a contextual type", ()) ERROR(type_of_expression_is_ambiguous,none, "type of expression is ambiguous without more context", ()) ERROR(specific_type_of_expression_is_ambiguous,none, "expression type %0 is ambiguous without more context", (Type)) ERROR(missing_protocol,none, "missing protocol %0", (Identifier)) ERROR(nil_literal_broken_proto,none, "protocol 'ExpressibleByNilLiteral' is broken", ()) ERROR(builtin_integer_literal_broken_proto,none, "protocol '_ExpressibleByBuiltinIntegerLiteral' is broken", ()) ERROR(integer_literal_broken_proto,none, "protocol 'ExpressibleByIntegerLiteral' is broken", ()) ERROR(builtin_float_literal_broken_proto,none, "protocol '_ExpressibleByBuiltinFloatLiteral' is broken", ()) ERROR(float_literal_broken_proto,none, "protocol 'ExpressibleByFloatLiteral' is broken", ()) ERROR(builtin_boolean_literal_broken_proto,none, "protocol '_ExpressibleByBuiltinBooleanLiteral' is broken", ()) ERROR(boolean_literal_broken_proto,none, "protocol 'ExpressibleByBooleanLiteral' is broken", ()) ERROR(builtin_unicode_scalar_literal_broken_proto,none, "protocol '_ExpressibleByBuiltinUnicodeScalarLiteral' is broken", ()) ERROR(unicode_scalar_literal_broken_proto,none, "protocol 'ExpressibleByUnicodeScalarLiteral' is broken", ()) ERROR(builtin_extended_grapheme_cluster_literal_broken_proto,none, "protocol '_ExpressibleByBuiltinExtendedGraphemeClusterLiteral' is broken", ()) ERROR(extended_grapheme_cluster_literal_broken_proto,none, "protocol 'ExpressibleByExtendedGraphemeClusterLiteral' is broken", ()) ERROR(builtin_string_literal_broken_proto,none, "protocol '_ExpressibleByBuiltinStringLiteral' is broken", ()) ERROR(string_literal_broken_proto,none, "protocol 'ExpressibleByStringLiteral' is broken", ()) // Array literals ERROR(array_protocol_broken,none, "ExpressibleByArrayLiteral protocol definition is broken", ()) ERROR(type_is_not_array,none, "contextual type %0 cannot be used with array literal", (Type)) NOTE(meant_dictionary_lit,none, "did you mean to use a dictionary literal instead?", ()) ERROR(should_use_empty_dictionary_literal,none, "use [:] to get an empty dictionary literal", ()) // Dictionary literals ERROR(dictionary_protocol_broken,none, "ExpressibleByDictionaryLiteral protocol definition is broken", ()) ERROR(type_is_not_dictionary,none, "contextual type %0 cannot be used with dictionary literal", (Type)) // Generic specializations ERROR(cannot_explicitly_specialize_generic_function,none, "cannot explicitly specialize a generic function", ()) ERROR(not_a_generic_definition,none, "cannot specialize a non-generic definition", ()) ERROR(not_a_generic_type,none, "cannot specialize non-generic type %0", (Type)) ERROR(type_parameter_count_mismatch,none, "generic type %0 specialized with %select{too many|too few}3 type " "parameters (got %2, but expected %1)", (Identifier, unsigned, unsigned, bool)) ERROR(generic_type_requires_arguments,none, "reference to generic type %0 requires arguments in <...>", (Type)) NOTE(generic_type_declared_here,none, "generic type %0 declared here", (Identifier)) WARNING(use_of_void_pointer,none, "Unsafe%0Pointer has been replaced by Unsafe%0RawPointer", (StringRef)) // Ambiguities ERROR(ambiguous_decl_ref,none, "ambiguous use of %0", (DeclName)) ERROR(ambiguous_operator_ref,none, "ambiguous use of operator %0", (DeclName)) NOTE(ambiguous_because_of_trailing_closure,none, "%select{use an explicit argument label instead of a trailing closure|" "avoid using a trailing closure}0 to call %1", (bool, DeclName)) // Cannot capture inout-ness of a parameter // Partial application of foreign functions not supported ERROR(partial_application_of_function_invalid,none, "partial application of %select{" "function with 'inout' parameters|" "'mutating' method|" "'super.init' initializer chain|" "'self.init' initializer delegation" "}0 is not allowed", (unsigned)) ERROR(self_assignment_var,none, "assigning a variable to itself", ()) ERROR(self_assignment_prop,none, "assigning a property to itself", ()) ERROR(property_use_in_closure_without_explicit_self,none, "reference to property %0 in closure requires explicit 'self.' to make" " capture semantics explicit", (Identifier)) ERROR(method_call_in_closure_without_explicit_self,none, "call to method %0 in closure requires explicit 'self.' to make" " capture semantics explicit", (Identifier)) ERROR(implicit_use_of_self_in_closure,none, "implicit use of 'self' in closure; use 'self.' to make" " capture semantics explicit", ()) ERROR(capture_before_declaration,none, "cannot capture %0 before it is declared", (Identifier)) ERROR(transitive_capture_before_declaration,none, "cannot capture %0, which would use %1 before it is declared", (Identifier, Identifier)) NOTE(transitive_capture_through_here,none, "%0, declared here, captures %1", (Identifier, Identifier)) ERROR(closure_implicit_capture_without_noescape,none, "escaping closures can only capture inout parameters explicitly by value", ()) ERROR(closure_implicit_capture_mutating_self,none, "closure cannot implicitly capture a mutating self parameter", ()) ERROR(nested_function_with_implicit_capture_argument,none, "nested function with %select{an |}0implicitly captured inout " "parameter%select{|s}0 can only be used as a non-escaping argument", (bool)) ERROR(nested_function_escaping_inout_capture,none, "nested function cannot capture inout parameter and escape", ()) WARNING(recursive_accessor_reference,none, "attempting to %select{access|modify}1 %0 within its own " "%select{getter|setter}1", (Identifier, bool)) NOTE(recursive_accessor_reference_silence,none, "access 'self' explicitly to silence this warning", ()) WARNING(store_in_willset,none, "attempting to store to property %0 within its own willSet, which is " "about to be overwritten by the new value", (Identifier)) ERROR(tuple_splat_use,none, "passing %0 arguments to a callee as a single tuple value has been removed in Swift 3", (unsigned)) ERROR(value_of_module_type,none, "expected module member name after module name", ()) ERROR(value_of_metatype_type,none, "expected member name or constructor call after type name", ()) WARNING(warn_value_of_metatype_missing_self,none, "missing '.self' for reference to metatype of type %0", (Type)) NOTE(add_parens_to_type,none, "add arguments after the type to construct a value of the type", ()) NOTE(add_self_to_type,none, "use '.self' to reference the type object", ()) WARNING(warn_unqualified_access,none, "use of %0 treated as a reference to %1 in %2 %3", (Identifier, DescriptiveDeclKind, DescriptiveDeclKind, DeclName)) NOTE(fix_unqualified_access_member,none, "use 'self.' to silence this warning", ()) NOTE(fix_unqualified_access_top_level,none, "use '%0' to reference the %1", (StringRef, DescriptiveDeclKind, Identifier)) NOTE(fix_unqualified_access_top_level_multi,none, "use '%0' to reference the %1 in module %2", (StringRef, DescriptiveDeclKind, Identifier)) ERROR(unsupported_special_decl_ref, none, "referencing %0 as a function value is not implemented", (Identifier)) WARNING(bitcasting_away_noescape, none, "'unsafeBitCast' from non-escaping function type %0 to escaping " "function type %1 is undefined; use " "'withoutActuallyEscaping' to temporarily escape a function", (Type, Type)) WARNING(bitcasting_to_change_function_rep, none, "'unsafeBitCast' from function type %0 to %1 changes @convention and " "is undefined; use an implicit conversion to change conventions", (Type, Type)) WARNING(bitcasting_to_downcast, none, "'unsafeBitCast' from %0 to %1 can be replaced with 'unsafeDowncast'", (Type, Type)) WARNING(bitcasting_is_no_op, none, "'unsafeBitCast' from %0 to %1 is unnecessary and can be removed", (Type, Type)) WARNING(bitcasting_to_change_pointer_kind, none, "'unsafeBitCast' from %0 to %1 can be replaced with %2 initializer", (Type, Type, Identifier)) WARNING(bitcasting_to_change_pointee_type, none, "'unsafeBitCast' from %0 to %1 changes pointee type and may lead to " "undefined behavior; use the 'withMemoryRebound' method on %0 to " "rebind the type of memory", (Type, Type)) WARNING(bitcasting_to_give_type_to_raw_pointer, none, "'unsafeBitCast' from %0 to %1 gives a type to a raw pointer and may " "lead to undefined behavior", (Type, Type)) NOTE(bitcast_assume_memory_rebound, none, "use the 'assumingMemoryBound' method if the pointer is known to point to " "an existing value or array of type %0 in memory", (Type)) NOTE(bitcast_bind_memory, none, "use the 'bindMemory' method to assign type %0 to uninitialized raw " "memory", (Type)) WARNING(bitcasting_for_number_bit_pattern_init, none, "'unsafeBitCast' from %0 to %1 can be replaced with 'bitPattern:' " "initializer on %1", (Type, Type)) WARNING(bitcasting_for_number_bit_pattern_property, none, "'unsafeBitCast' from %0 to %1 can be replaced with 'bitPattern' " "property on %0", (Type, Type)) WARNING(bitcasting_to_change_from_unsized_to_sized_int, none, "'unsafeBitCast' from %0 to %1 can be replaced with %1 " "initializer", (Type, Type)) WARNING(use_of_qq_on_non_optional_value,none, "left side of nil coalescing operator '?""?' has non-optional type %0, " "so the right side is never used", (Type)) WARNING(nonoptional_compare_to_nil,none, "comparing non-optional value of type %0 to nil always returns" " %select{false|true}1", (Type, bool)) WARNING(optional_check_nonoptional,none, "non-optional expression of type %0 used in a check for optionals", (Type)) WARNING(optional_check_promotion,none, "explicitly specified type %0 adds an additional level of optional to" " the initializer, making the optional check always succeed", (Type)) WARNING(optional_pattern_match_promotion,none, "pattern match introduces an implicit promotion from %0 to %1", (Type, Type)) WARNING(optional_to_any_coercion,none, "expression implicitly coerced from %0 to Any", (Type)) NOTE(default_optional_to_any,none, "provide a default value to avoid this warning", ()) NOTE(force_optional_to_any,none, "force-unwrap the value to avoid this warning", ()) NOTE(silence_optional_to_any,none, "explicitly cast to Any with 'as Any' to silence this warning", ()) WARNING(optional_in_string_interpolation_segment,none, "string interpolation produces a debug description for an optional " "value; did you mean to make this explicit?", ()) NOTE(silence_optional_in_interpolation_segment_call,none, "use 'String(describing:)' to silence this warning", ()) ERROR(invalid_noescape_use,none, "non-escaping %select{value|parameter}1 %0 may only be called", (Identifier, bool)) NOTE(noescape_autoclosure,none, "parameter %0 is implicitly non-escaping because it was declared @autoclosure", (Identifier)) NOTE(noescape_parameter,none, "parameter %0 is implicitly non-escaping", (Identifier)) ERROR(closure_noescape_use,none, "closure use of non-escaping parameter %0 may allow it to escape", (Identifier)) ERROR(decl_closure_noescape_use,none, "declaration closing over non-escaping parameter %0 may allow it to escape", (Identifier)) ERROR(passing_noescape_to_escaping,none, "passing non-escaping parameter %0 to function expecting an @escaping closure", (Identifier)) ERROR(assigning_noescape_to_escaping,none, "assigning non-escaping parameter %0 to an @escaping closure", (Identifier)) ERROR(general_noescape_to_escaping,none, "using non-escaping parameter %0 in a context expecting an @escaping closure", (Identifier)) ERROR(capture_across_type_decl,none, "%0 declaration cannot close over value %1 defined in outer scope", (DescriptiveDeclKind, Identifier)) //------------------------------------------------------------------------------ // Type Check Statements //------------------------------------------------------------------------------ ERROR(jump_out_of_defer,none, "'%0' cannot transfer control out of a defer statement", (StringRef)) ERROR(return_invalid_outside_func,none, "return invalid outside of a func", ()) ERROR(return_expr_missing,none, "non-void function should return a value", ()) ERROR(return_non_failable_init,none, "only a failable initializer can return 'nil'", ()) NOTE(make_init_failable,none, "use 'init?' to make the initializer %0 failable", (DeclName)) ERROR(return_init_non_nil,none, "'nil' is the only return value permitted in an initializer", ()) WARNING(if_always_true,none, "'if' condition is always true", ()) WARNING(while_always_true,none, "'while' condition is always true", ()) WARNING(guard_always_succeeds,none, "'guard' condition is always true, body is unreachable", ()) ERROR(expression_unused_closure,none, "closure expression is unused", ()) ERROR(expression_unused_function,none, "expression resolves to an unused function", ()) ERROR(expression_unused_lvalue,none, "expression resolves to an unused l-value", ()) WARNING(expression_unused_result_call,none, "result of call to %0 is unused", (DeclName)) WARNING(expression_unused_result_operator,none, "result of operator %0 is unused", (DeclName)) WARNING(expression_unused_result_unknown, none, "result of call is unused, but produces %0", (Type)) WARNING(expression_unused_result, none, "expression of type %0 is unused", (Type)) WARNING(expression_unused_init_result,none, "result of %0 initializer is unused", (Type)) WARNING(expression_unused_optional_try,none, "result of 'try?' is unused", ()) WARNING(expression_unused_selector_result, none, "result of '#selector' is unused", ()) WARNING(expression_unused_literal,none, "%0 literal is unused", (StringRef)) ERROR(assignment_lhs_not_lvalue,none, "cannot assign to immutable expression of type %0", (Type)) ERROR(assignment_lhs_is_immutable_variable,none, "cannot assign to value: %0", (StringRef)) ERROR(assignment_lhs_is_immutable_property,none, "cannot assign to property: %0", (StringRef)) ERROR(assignment_subscript_has_immutable_base,none, "cannot assign through subscript: %0", (StringRef)) ERROR(assignment_bang_has_immutable_subcomponent,none, "cannot assign through '!': %0", (StringRef)) NOTE(change_to_mutating,none, "mark %select{method|accessor}0 'mutating' to make 'self' mutable", (bool)) // For Stmt ERROR(deprecated_c_style_for_stmt,none, "C-style for statement has been removed in Swift 3", ()) // ForEach Stmt ERROR(sequence_protocol_broken,none, "SequenceType protocol definition is broken", ()) ERROR(iterator_protocol_broken,none, "IteratorProtocol protocol definition is broken", ()) ERROR(label_shadowed, none, "label %0 cannot be reused on an inner statement", (Identifier)) ERROR(break_outside_loop,none, "'break' is only allowed inside a loop, if, do, or switch", ()) ERROR(unlabeled_break_outside_loop,none, "unlabeled 'break' is only allowed inside a loop or switch, a" " labeled break is required to exit an if or do", ()) ERROR(continue_outside_loop,none, "'continue' is only allowed inside a loop", ()) ERROR(continue_not_in_this_stmt,none, "'continue' cannot be used with %0 statements", (StringRef)) // Switch Stmt ERROR(no_match_operator,none, "no binary '~=' operator available for 'switch' statement", ()) ERROR(fallthrough_outside_switch,none, "'fallthrough' is only allowed inside a switch", ()) ERROR(fallthrough_from_last_case,none, "'fallthrough' without a following 'case' or 'default' block", ()) ERROR(fallthrough_into_case_with_var_binding,none, "'fallthrough' cannot transfer control to a case label that declares variables", ()) ERROR(unnecessary_cast_over_optionset,none, "unnecessary cast over raw value of %0", (Type)) ERROR(type_mismatch_multiple_pattern_list,none, "pattern variable bound to type %0, expected type %1", (Type, Type)) WARNING(where_on_one_item, none, "'where' only applies to the second pattern match in this case", ()) NOTE(add_where_newline, none, "disambiguate by adding a line break between them if this is desired", ()) NOTE(duplicate_where, none, "duplicate the 'where' on both patterns to check both patterns",()) ERROR(trailing_closure_requires_parens,none, "trailing closure requires parentheses for disambiguation in this" " context", ()) //------------------------------------------------------------------------------ // Type Check Patterns //------------------------------------------------------------------------------ ERROR(cannot_infer_type_for_pattern,none, "type annotation missing in pattern", ()) ERROR(refutable_pattern_requires_initializer,none, "pattern matching requires an initializer value to match against", ()) WARNING(var_pattern_didnt_bind_variables,none, "'%0' pattern has no effect; sub-pattern didn't bind any variables", (StringRef)) ERROR(iflet_pattern_matching,none, "pattern matching in a condition requires the 'case' keyword", ()) ERROR(iflet_implicitly_unwraps,none, "pattern matching in a condition implicitly unwraps optionals", ()) ERROR(type_pattern_missing_is,none, "'is' keyword required to pattern match against type name", ()) ERROR(pattern_type_mismatch_context,none, "type annotation does not match contextual type %0", (Type)) ERROR(tuple_pattern_in_non_tuple_context,none, "tuple pattern cannot match values of the non-tuple type %0", (Type)) ERROR(closure_argument_list_tuple,none, "contextual closure type %0 expects %1 argument%s1, " "but %2 %select{were|was}3 used in closure body", (Type, unsigned, unsigned, bool)) ERROR(closure_argument_list_missing,none, "contextual type for closure argument list expects %0 argument%s0, " "which cannot be implicitly ignored", (unsigned)) ERROR(tuple_pattern_length_mismatch,none, "tuple pattern has the wrong length for tuple type %0", (Type)) ERROR(tuple_pattern_label_mismatch,none, "tuple pattern element label %0 must be %1", (Identifier, Identifier)) ERROR(enum_element_pattern_member_not_found,none, "enum case '%0' not found in type %1", (StringRef, Type)) ERROR(optional_element_pattern_not_valid_type,none, "'?' pattern cannot match values of type %0", (Type)) ERROR(condition_optional_element_pattern_not_valid_type,none, "initializer for conditional binding must have Optional type, not %0", (Type)) ERROR(enum_element_pattern_not_member_of_enum,none, "enum case '%0' is not a member of type %1", (StringRef, Type)) ERROR(ambiguous_enum_pattern_type,none, "generic enum type %0 is ambiguous without explicit generic parameters " "when matching value of type %1", (Type, Type)) WARNING(type_inferred_to_undesirable_type,none, "%select{variable|constant}2 %0 inferred to have type %1, " "which may be unexpected", (Identifier, Type, bool)) NOTE(add_explicit_type_annotation_to_silence,none, "add an explicit type annotation to silence this warning", ()) ERROR(isa_pattern_value,none, "downcast pattern value of type %0 cannot be used", (Type)) WARNING(swift3_ignore_specialized_enum_element_call,none, "cannot specialize enum case; ignoring generic argument, " "which will be rejected in future version of Swift", ()) //------------------------------------------------------------------------------ // Error-handling diagnostics //------------------------------------------------------------------------------ ERROR(try_unhandled,none, "errors thrown from here are not handled", ()) ERROR(throwing_call_unhandled,none, "call can throw, but the error is not handled", ()) ERROR(tryless_throwing_call_unhandled,none, "call can throw, but it is not marked with 'try' and " "the error is not handled", ()) ERROR(throw_in_nonthrowing_function,none, "error is not handled because the enclosing function " "is not declared 'throws'", ()) ERROR(throwing_call_in_rethrows_function,none, "call can throw, but the error is not handled; a function declared " "'rethrows' may only throw if its parameter does", ()) ERROR(tryless_throwing_call_in_rethrows_function,none, "call can throw, but it is not marked with 'try' and " "the error is not handled; a function declared " "'rethrows' may only throw if its parameter does", ()) ERROR(throw_in_rethrows_function,none, "a function declared 'rethrows' may only throw if its parameter does", ()) NOTE(because_rethrows_argument_throws,none, "call is to 'rethrows' function, but argument function can throw", ()) NOTE(because_rethrows_default_argument_throws,none, "call is to 'rethrows' function, but a defaulted argument function" " can throw", ()) ERROR(throwing_call_in_nonthrowing_autoclosure,none, "call can throw, but it is executed in a non-throwing " "autoclosure",()) ERROR(tryless_throwing_call_in_nonthrowing_autoclosure,none, "call can throw, but it is not marked with 'try' and " "it is executed in a non-throwing autoclosure",()) ERROR(throw_in_nonthrowing_autoclosure,none, "error is not handled because it is thrown in a non-throwing " "autoclosure", ()) ERROR(try_unhandled_in_nonexhaustive_catch,none, "errors thrown from here are not handled because the " "enclosing catch is not exhaustive", ()) ERROR(throwing_call_in_nonexhaustive_catch,none, "call can throw, but the enclosing catch is not exhaustive", ()) ERROR(tryless_throwing_call_in_nonexhaustive_catch,none, "call can throw, but it is not marked with 'try' and " "the enclosing catch is not exhaustive", ()) ERROR(throw_in_nonexhaustive_catch,none, "error is not handled because the enclosing catch is not exhaustive", ()) ERROR(throwing_call_in_illegal_context,none, "call can throw, but errors cannot be thrown out of %0", (StringRef)) ERROR(throw_in_illegal_context,none, "errors cannot be thrown out of %0", (StringRef)) ERROR(throwing_operator_without_try,none, "operator can throw but expression is not marked with 'try'", ()) ERROR(throwing_call_without_try,none, "call can throw but is not marked with 'try'", ()) WARNING(no_throw_in_try,none, "no calls to throwing functions occur within 'try' expression", ()) WARNING(no_throw_in_do_with_catch,none, "'catch' block is unreachable because no errors are thrown in 'do' block", ()) //------------------------------------------------------------------------------ // Type Check Types //------------------------------------------------------------------------------ ERROR(unsupported_recursive_struct,none, "value type %0 cannot have a stored property that recursively " "contains it", (Type)) ERROR(recursive_enum_not_indirect,none, "recursive enum %0 is not marked 'indirect'", (Type)) ERROR(unsupported_infinitely_sized_type,none, "value type %0 has infinite size", (Type)) NOTE(note_type_cycle_starts_here,none, "cycle beginning here: %0", (StringRef)) NOTE(note_recursive_enum_case_here,none, "recursive case here", ()) ERROR(sugar_type_not_found,none, "broken standard library: cannot find " "%select{Array|Optional|ImplicitlyUnwrappedOptional|Dictionary|" "Error}0 type", (unsigned)) ERROR(optional_intrinsics_not_found,none, "broken standard library: cannot find intrinsic operations on " "Optional", ()) ERROR(pointer_argument_intrinsics_not_found,none, "broken standard library: cannot find intrinsic operations on " "UnsafeMutablePointer", ()) ERROR(array_literal_intrinsics_not_found,none, "broken standard library: cannot find intrinsic operations on " "Array", ()) ERROR(bool_intrinsics_not_found,none, "broken standard library: cannot find intrinsic operations on Bool", ()) ERROR(class_super_access,none, "class %select{must be declared %select{" "%select{private|fileprivate|internal|%error|%error}2|private or fileprivate}3" "|cannot be declared %select{%error|fileprivate|internal|public|open}1}0 " "because its superclass is " "%select{private|fileprivate|internal|%error|%error}2", (bool, Accessibility, Accessibility, bool)) WARNING(class_super_access_warn,none, "class %select{should be declared " "%select{private|fileprivate|internal|%error|%error}2" "|should not be declared %select{in this context|fileprivate|internal|public|open}1}0 " "because its superclass is " "%select{private|fileprivate|internal|%error|%error}2", (bool, Accessibility, Accessibility, bool)) ERROR(dot_protocol_on_non_existential,none, "cannot use 'Protocol' with non-protocol type %0", (Type)) ERROR(tuple_single_element,none, "cannot create a single-element tuple with an element label", ()) ERROR(tuple_ellipsis,none, "cannot create a variadic tuple", ()) // Ownership ERROR(invalid_ownership_type,none, "'%select{strong|weak|unowned|unowned}0' may only be applied to " "class and class-bound protocol types, not %1", (/*Ownership*/unsigned, Type)) ERROR(invalid_ownership_protocol_type,none, "'%select{strong|weak|unowned|unowned}0' may not be applied to " "non-class-bound %1; consider adding a protocol conformance that has a class bound", (/*Ownership*/unsigned, Type)) ERROR(invalid_weak_ownership_not_optional,none, "'weak' variable should have optional type %0", (Type)) ERROR(invalid_weak_let,none, "'weak' must be a mutable variable, because it may change at runtime", ()) // required ERROR(required_initializer_nonclass,none, "'required' initializer in non-class type %0", (Type)) ERROR(required_initializer_in_extension,none, "'required' initializer must be declared directly in class %0" " (not in an extension)", (Type)) ERROR(required_initializer_missing,none, "'required' initializer %0 must be provided by subclass of %1", (DeclName, Type)) NOTE(required_initializer_here,none, "'required' initializer is declared in superclass here", ()) ERROR(required_initializer_not_accessible,none, "'required' initializer must be as accessible as its enclosing type", ()) ERROR(required_initializer_missing_keyword,none, "'required' modifier must be present on all overrides of a required " "initializer", ()) ERROR(required_initializer_override_wrong_keyword,none, "use the 'required' modifier to override a required initializer", ()) WARNING(required_initializer_override_keyword,none, "'override' is implied when overriding a required initializer", ()) NOTE(overridden_required_initializer_here,none, "overridden required initializer is here", ()) // Functions ERROR(attribute_requires_function_type,none, "@%0 attribute only applies to function types", (StringRef)) ERROR(attribute_not_supported,none, "this attribute is not supported", ()) ERROR(unsupported_convention,none, "convention '%0' not supported", (StringRef)) ERROR(unreferenced_generic_parameter,none, "generic parameter '%0' is not used in function signature", (StringRef)) // SIL ERROR(opened_non_protocol,none, "@opened cannot be applied to non-protocol type %0", (Type)) ERROR(sil_function_ellipsis,PointsToFirstBadToken, "SIL function types cannot be variadic", ()) ERROR(sil_function_input_label,PointsToFirstBadToken, "SIL function types cannot have labeled inputs", ()) ERROR(sil_function_output_label,PointsToFirstBadToken, "SIL function types cannot have labeled results", ()) ERROR(sil_function_repeat_convention,PointsToFirstBadToken, "repeated %select{parameter|result|callee}0 convention attribute", (unsigned)) ERROR(sil_function_multiple_error_results,PointsToFirstBadToken, "SIL function types cannot have multiple @error results", ()) ERROR(unsupported_sil_convention,none, "convention '%0' not supported in SIL", (StringRef)) ERROR(illegal_sil_type,none, "type %0 is not a legal SIL value type", (Type)) ERROR(sil_box_arg_mismatch,none, "SIL box type has wrong number of generic arguments for layout", ()) // SIL Metatypes ERROR(sil_metatype_without_repr,none, "metatypes in SIL must have @thin, @thick, or @objc_metatype attribute", ()) ERROR(sil_metatype_multiple_reprs,none, "metatypes in SIL can only be one of @thin, @thick, or @objc_metatype", ()) //------------------------------------------------------------------------------ // @objc and @nonobjc //------------------------------------------------------------------------------ ERROR(attr_used_without_required_module, none, "%0 attribute used without importing module %1", (DeclAttribute, Identifier)) ERROR(invalid_objc_decl_context,none, "@objc can only be used with members of classes, @objc protocols, and " "concrete extensions of classes", ()) ERROR(invalid_objc_decl,none, "only classes (and their extensions), protocols, methods, initializers, " "properties, and subscript declarations can be declared @objc", ()) ERROR(invalid_objc_swift_rooted_class,none, "only classes that inherit from NSObject can be declared @objc", ()) ERROR(invalid_nonobjc_decl,none, "only class members and extensions of classes can be declared @nonobjc", ()) ERROR(invalid_nonobjc_extension,none, "only extensions of classes can be declared @nonobjc", ()) ERROR(objc_in_extension_context,none, "members of constrained extensions cannot be declared @objc", ()) ERROR(objc_in_generic_extension,none, "@objc is not supported within extensions of generic classes or classes that inherit from generic classes", ()) ERROR(objc_operator, none, "operator methods cannot be declared @objc", ()) ERROR(objc_operator_proto, none, "@objc protocols may not have operator requirements", ()) WARNING(objc_inference_swift3_dynamic,none, "inference of '@objc' for 'dynamic' members is deprecated", ()) WARNING(objc_inference_swift3_objc_derived,none, "inference of '@objc' for members of Objective-C-derived classes is " "deprecated", ()) NOTE(objc_inference_swift3_addobjc,none, "add `@objc` to continue exposing an Objective-C entry point (Swift 3 " "behavior)", ()) NOTE(objc_inference_swift3_addnonobjc,none, "add `@nonobjc` to suppress the Objective-C entry point (Swift 4 " "behavior)", ()) ERROR(objc_for_generic_class,none, "generic subclasses of '@objc' classes cannot have an explicit '@objc' " "attribute because they are not directly visible from Objective-C", ()) ERROR(objc_getter_for_nonobjc_property,none, "'@objc' getter for non-'@objc' property", ()) ERROR(objc_getter_for_nonobjc_subscript,none, "'@objc' getter for non-'@objc' subscript", ()) ERROR(objc_setter_for_nonobjc_property,none, "'@objc' setter for non-'@objc' property", ()) ERROR(objc_setter_for_nonobjc_subscript,none, "'@objc' setter for non-'@objc' subscript", ()) WARNING(accessor_swift3_objc_inference,none, "%select{%0 %1|%1}2 with '@objc' %select{getter|setter}3 depends on " "deprecated inference of '@objc'", (DescriptiveDeclKind, DeclName, bool, bool)) ERROR(objc_enum_generic,none, "'@objc' enum cannot be generic", ()) ERROR(objc_name_req_nullary,none, "'@objc' %0 must have a simple name", (DescriptiveDeclKind)) ERROR(objc_name_subscript,none, "'@objc' subscript cannot have a name; did you mean to put " "the name on the getter or setter?", ()) ERROR(objc_name_deinit,none, "'@objc' deinitializer cannot have a name", ()) ERROR(objc_name_func_mismatch,none, "'@objc' %select{initializer|method}0 name provides " "%select{one argument name|names for %1 arguments}2, but " "%select{initializer|method}0 has %select{one parameter|%3 parameters}4" "%select{| (%select{|including }4the error parameter)}5", (bool, unsigned, bool, unsigned, bool, bool)) ERROR(objc_enum_case_req_name,none, "attribute has no effect; cases within an '@objc' enum are already " "exposed to Objective-C", ()) ERROR(objc_enum_case_req_objc_enum,none, "'@objc' enum case is not allowed outside of an '@objc' enum", ()) ERROR(objc_enum_case_multi,none, "'@objc' enum case declaration defines multiple enum cases with the same Objective-C name", ()) ERROR(objc_extension_not_class,none, "'@objc' can only be applied to an extension of a class", ()) // If you change this, also change enum ObjCReason #define OBJC_ATTR_SELECT "select{marked @_cdecl|marked dynamic|marked @objc|marked @IBOutlet|marked @IBAction|marked @NSManaged|a member of an @objc protocol|implicitly @objc|an @objc override|an implementation of an @objc requirement|marked @IBInspectable|marked @GKInspectable|in an @objc extension of a class (without @nonobjc)}" WARNING(attribute_meaningless_when_nonobjc,none, "'@%0' attribute is meaningless on a property that cannot be " "represented in Objective-C", (StringRef)) ERROR(objc_invalid_on_var,none, "property cannot be %" OBJC_ATTR_SELECT "0 " "because its type cannot be represented in Objective-C", (unsigned)) ERROR(objc_invalid_subscript_key_type,none, "subscript cannot be %" OBJC_ATTR_SELECT "0 because its key " "type %1 is neither an integer nor an object", (unsigned, Type)) ERROR(objc_invalid_on_subscript,none, "subscript cannot be %" OBJC_ATTR_SELECT "0 because its type " "cannot be represented in Objective-C", (unsigned)) ERROR(objc_invalid_with_generic_params,none, "method cannot be %" OBJC_ATTR_SELECT "0 because it has generic " "parameters", (unsigned)) ERROR(objc_convention_invalid,none, "%0 is not representable in Objective-C, so it cannot be used" " with '@convention(%1)'", (Type, StringRef)) ERROR(function_type_no_parens,none, "single argument function types require parentheses", ()) NOTE(not_objc_empty_protocol_composition,none, "'Any' is not considered '@objc'; use 'AnyObject' instead", ()) NOTE(not_objc_protocol,none, "protocol-constrained type containing protocol %0 cannot be represented " "in Objective-C", (Type)) NOTE(not_objc_class_constraint,none, "protocol-constrained type containing class %0 cannot be represented " "in Objective-C", (Type)) NOTE(not_objc_error_protocol_composition,none, "protocol-constrained type containing 'Error' cannot be represented " "in Objective-C", ()) NOTE(not_objc_empty_tuple,none, "empty tuple type cannot be represented in Objective-C", ()) NOTE(not_objc_tuple,none, "tuples cannot be represented in Objective-C", ()) NOTE(not_objc_swift_class,none, "classes not annotated with @objc cannot be represented " "in Objective-C", ()) NOTE(not_objc_swift_struct,none, "Swift structs cannot be represented in Objective-C", ()) NOTE(not_objc_swift_enum,none, "non-'@objc' enums cannot be represented in Objective-C", ()) NOTE(not_objc_generic_type_param,none, "generic type parameters cannot be represented in Objective-C", ()) NOTE(not_objc_function_type_param,none, "function types cannot be represented in Objective-C unless their " "parameters and returns can be", ()) NOTE(not_objc_function_type_throwing,none, "throwing function types cannot be represented in Objective-C", ()) NOTE(objc_inferring_on_objc_protocol_member,none, "inferring '@objc' because the declaration is a member of " "an '@objc' protocol", ()) NOTE(objc_overriding_objc_decl,none, "overriding '@objc' %select{property|subscript|initializer|method}0 %1 " "here", (unsigned, DeclName)) NOTE(objc_witness_objc_requirement,none, "satisfying requirement for %0 %1 in protocol %2", (DescriptiveDeclKind, DeclName, DeclName)) ERROR(objc_invalid_on_func_curried,none, "method cannot be %" OBJC_ATTR_SELECT "0 because curried functions " "cannot be represented in Objective-C", (unsigned)) ERROR(objc_observing_accessor, none, "observing accessors are not allowed to be marked @objc", ()) ERROR(objc_invalid_on_func_variadic,none, "method cannot be %" OBJC_ATTR_SELECT "0 because it has a variadic " "parameter", (unsigned)) ERROR(objc_invalid_on_func_param_type,none, "method cannot be %" OBJC_ATTR_SELECT "1 because the type of the " "parameter %0 cannot be represented in Objective-C", (unsigned, unsigned)) ERROR(objc_invalid_on_func_single_param_type,none, "method cannot be %" OBJC_ATTR_SELECT "0 because the type of the " "parameter cannot be represented in Objective-C", (unsigned)) ERROR(objc_invalid_on_func_result_type,none, "method cannot be %" OBJC_ATTR_SELECT "0 because its result type " "cannot be represented in Objective-C", (unsigned)) ERROR(objc_invalid_on_foreign_class,none, "method cannot be %" OBJC_ATTR_SELECT "0 because Core Foundation " "types are not classes in Objective-C", (unsigned)) ERROR(objc_invalid_on_throwing_optional_result,none, "throwing method cannot be %" OBJC_ATTR_SELECT "0 because " "it returns a value of optional type %1; 'nil' indicates failure to " "Objective-C", (unsigned, Type)) ERROR(objc_invalid_on_throwing_result,none, "throwing method cannot be %" OBJC_ATTR_SELECT "0 because " "it returns a value of type %1; return 'Void' or a type that bridges " "to an Objective-C class", (unsigned, Type)) ERROR(objc_invalid_on_failing_init,none, "a failable and throwing initializer cannot be " "%" OBJC_ATTR_SELECT "0 because 'nil' indicates failure to Objective-C", (unsigned)) ERROR(objc_in_objc_runtime_visible,none, "%0 cannot be %" OBJC_ATTR_SELECT "1 because class %2 is only visible " "via the Objective-C runtime", (DescriptiveDeclKind, unsigned, Identifier)) ERROR(objc_override_method_selector_mismatch,none, "Objective-C method has a different selector from the " "method it overrides (%0 vs. %1)", (ObjCSelector, ObjCSelector)) ERROR(objc_override_property_name_mismatch,none, "Objective-C property has a different name from the " "property it overrides (%0 vs. %1)", (Identifier, Identifier)) ERROR(objc_ambiguous_inference,none, "ambiguous inference of Objective-C name for %0 %1 (%2 vs %3)", (DescriptiveDeclKind, DeclName, ObjCSelector, ObjCSelector)) NOTE(objc_ambiguous_inference_candidate,none, "%0 (in protocol %1) provides Objective-C name %2", (DeclName, DeclName, ObjCSelector)) ERROR(nonlocal_bridged_to_objc,none, "conformance of %0 to %1 can only be written in module %2", (Identifier, Identifier, Identifier)) ERROR(broken_bridged_to_objc_protocol,none, "_BridgedToObjectiveC protocol is broken", ()) ERROR(missing_bridging_function,Fatal, "missing '%select{_forceBridgeFromObjectiveC|" "_conditionallyBridgeFromObjectiveC}0'", (bool)) ERROR(missing_nserror_bridging_function,none, "missing _bridgeNSError", ()) #define OBJC_DIAG_SELECT "%select{initializer %1|implicit initializer %1|deinitializer|implicit deinitializer|method %1|getter for %1|subscript getter|setter for %1|subscript setter}0" #define OBJC_DIAG_SELECT_2 "%select{initializer %3|implicit initializer %3|deinitializer|implicit deinitializer|method %3|getter for %3|subscript getter|setter for %3|subscript setter}2" ERROR(objc_redecl,none, OBJC_DIAG_SELECT " with Objective-C selector %4 conflicts with " OBJC_DIAG_SELECT_2 " with the same Objective-C selector", (unsigned, DeclName, unsigned, DeclName, ObjCSelector)) NOTE(objc_declared_here,none, OBJC_DIAG_SELECT " declared here", (unsigned, DeclName)) ERROR(objc_redecl_same,none, OBJC_DIAG_SELECT " with Objective-C selector %2 conflicts with " "previous declaration with the same Objective-C selector", (unsigned, DeclName, ObjCSelector)) ERROR(objc_override_other,none, OBJC_DIAG_SELECT " with Objective-C selector %4 conflicts with " OBJC_DIAG_SELECT_2 " from superclass %5 with the same Objective-C " "selector", (unsigned, DeclName, unsigned, DeclName, ObjCSelector, Type)) ERROR(objc_class_method_not_permitted,none, OBJC_DIAG_SELECT " defines Objective-C class method %2, which is " "not permitted by Swift", (unsigned, DeclName, ObjCSelector)) WARNING(objc_class_method_not_permitted_swift3_compat_warning,none, OBJC_DIAG_SELECT " defines Objective-C class method %2, which is " "not guaranteed to be invoked by Swift and will be disallowed in future " "versions", (unsigned, DeclName, ObjCSelector)) ERROR(objc_witness_selector_mismatch,none, "Objective-C method %2 provided by " OBJC_DIAG_SELECT " does not match the requirement's selector (%3)", (unsigned, DeclName, ObjCSelector, ObjCSelector)) ERROR(objc_optional_requirement_conflict,none, "Objective-C method %4 provided by " OBJC_DIAG_SELECT " conflicts with optional requirement " OBJC_DIAG_SELECT_2 " in protocol %5", (unsigned, DeclName, unsigned, DeclName, ObjCSelector, DeclName)) NOTE(objc_optional_requirement_swift_rename,none, "rename %select{method|initializer|property|subscript}0 to match " "requirement %1", (bool, DeclName)) ERROR(witness_non_objc,none, "non-'@objc' " OBJC_DIAG_SELECT " does not satisfy requirement " "of '@objc' protocol %2", (unsigned, DeclName, DeclName)) WARNING(witness_non_objc_optional,none, "non-'@objc' " OBJC_DIAG_SELECT " does not satisfy optional " "requirement of '@objc' protocol %2", (unsigned, DeclName, DeclName)) ERROR(witness_non_objc_storage,none, "non-'@objc' %select{property %1|subscript}0 does not satisfy " "requirement of '@objc' protocol %2", (bool, DeclName, DeclName)) WARNING(witness_non_objc_storage_optional,none, "non-'@objc' %select{property %1|subscript}0 does not satisfy " "optional requirement of '@objc' protocol %2", (bool, DeclName, DeclName)) ERROR(nonobjc_not_allowed,none, "declaration is %" OBJC_ATTR_SELECT "0, and cannot be marked @nonobjc", (unsigned)) #undef OBJC_DIAG_SELECT_2 #undef OBJC_DIAG_SELECT #undef OBJC_ATTR_SELECT //------------------------------------------------------------------------------ // dynamic //------------------------------------------------------------------------------ ERROR(dynamic_not_in_class,none, "only members of classes may be dynamic", ()) ERROR(dynamic_with_final,none, "a declaration cannot be both 'final' and 'dynamic'", ()) ERROR(dynamic_with_nonobjc,none, "a declaration cannot be both '@nonobjc' and 'dynamic'", ()) ERROR(dynamic_requires_objc,none, "'dynamic' %0 %1 must also be '@objc'", (DescriptiveDeclKind, DeclName)) //------------------------------------------------------------------------------ // @available //------------------------------------------------------------------------------ ERROR(availability_decl_unavailable, none, "%0 is unavailable", (DeclName)) #define REPLACEMENT_DECL_KIND_SELECT "select{| instance method| property}" ERROR(availability_decl_unavailable_rename, none, "%0 has been %select{renamed to|replaced by}1" "%" REPLACEMENT_DECL_KIND_SELECT "2 '%3'", (DeclName, bool, unsigned, StringRef)) ERROR(availability_decl_unavailable_rename_msg, none, "%0 has been %select{renamed to|replaced by}1" "%" REPLACEMENT_DECL_KIND_SELECT "2 '%3': %4", (DeclName, bool, unsigned, StringRef, StringRef)) ERROR(availability_decl_unavailable_msg, none, "%0 is unavailable: %1", (DeclName, StringRef)) ERROR(availability_decl_unavailable_in_swift, none, "%0 is unavailable in Swift", (DeclName)) ERROR(availability_decl_unavailable_in_swift_msg, none, "%0 is unavailable in Swift: %1", (DeclName, StringRef)) NOTE(availability_marked_unavailable, none, "%0 has been explicitly marked unavailable here", (DeclName)) NOTE(availability_introduced_in_swift, none, "%0 was introduced in Swift %1", (DeclName, clang::VersionTuple)) NOTE(availability_obsoleted, none, "%0 was obsoleted in %1 %2", (DeclName, StringRef, clang::VersionTuple)) WARNING(availability_deprecated, none, "%0 %select{is|%select{is|was}3}1 deprecated" "%select{| %select{on|in}3 %2%select{| %4}3}1", (DeclName, bool, StringRef, bool, clang::VersionTuple)) WARNING(availability_deprecated_msg, none, "%0 %select{is|%select{is|was}3}1 deprecated" "%select{| %select{on|in}3 %2%select{| %4}3}1: %5", (DeclName, bool, StringRef, bool, clang::VersionTuple, StringRef)) WARNING(availability_deprecated_rename, none, "%0 %select{is|%select{is|was}3}1 deprecated" "%select{| %select{on|in}3 %2%select{| %4}3}1: " "%select{renamed to|replaced by}5%" REPLACEMENT_DECL_KIND_SELECT "6 " "'%7'", (DeclName, bool, StringRef, bool, clang::VersionTuple, bool, unsigned, StringRef)) #undef REPLACEMENT_DECL_KIND_SELECT NOTE(note_deprecated_rename, none, "use '%0' instead", (StringRef)) ERROR(availability_decl_more_than_enclosing, none, "declaration cannot be more available than enclosing scope", ()) NOTE(availability_decl_more_than_enclosing_enclosing_here, none, "enclosing scope here", ()) ERROR(availability_decl_only_version_newer, none, "%0 is only available on %1 %2 or newer", (DeclName, StringRef, clang::VersionTuple)) NOTE(availability_guard_with_version_check, none, "add 'if #available' version check", ()) NOTE(availability_add_attribute, none, "add @available attribute to enclosing %0", (DescriptiveDeclKind)) ERROR(availability_accessor_only_version_newer, none, "%select{getter|setter}0 for %1 is only available on %2 %3" " or newer", (/*AccessorKind*/unsigned, DeclName, StringRef, clang::VersionTuple)) ERROR(availability_inout_accessor_only_version_newer, none, "cannot pass as inout because %select{getter|setter}0 for %1 is only " "available on %2 %3 or newer", (/*AccessorKind*/unsigned, DeclName, StringRef, clang::VersionTuple)) ERROR(availability_query_required_for_platform, none, "condition required for target platform '%0'", (StringRef)) WARNING(availability_query_useless_enclosing_scope, none, "unnecessary check for '%0'; enclosing scope ensures guard " "will always be true", (StringRef)) NOTE(availability_query_useless_enclosing_scope_here, none, "enclosing scope here", ()) ERROR(availability_global_script_no_potential, none, "global variable cannot be marked potentially " "unavailable with '@available' in script mode", ()) ERROR(availability_stored_property_no_potential, none, "stored properties cannot be marked potentially unavailable with " "'@available'", ()) ERROR(availability_protocol_requires_version, none, "protocol %0 requires %1 to be available on %2 %3 and newer", (DeclName, DeclName, StringRef, clang::VersionTuple)) NOTE(availability_protocol_requirement_here, none, "protocol requirement here", ()) NOTE(availability_conformance_introduced_here, none, "conformance introduced here", ()) //------------------------------------------------------------------------------ // @discardableResult //------------------------------------------------------------------------------ WARNING(discardable_result_on_void_never_function, none, "@discardableResult declared on a function returning %select{Never|Void}0 is unnecessary", (bool)) //------------------------------------------------------------------------------ // Resilience diagnostics //------------------------------------------------------------------------------ ERROR(fixed_layout_attr_on_internal_type, none, "'@_fixed_layout' attribute can only be applied to '@_versioned' " "or public declarations, but %0 is " "%select{private|fileprivate|internal|%error|%error}1", (Identifier, Accessibility)) ERROR(versioned_attr_with_explicit_accessibility, none, "'@_versioned' attribute can only be applied to internal " "declarations, but %0 is %select{private|fileprivate|%error|public|open}1", (Identifier, Accessibility)) ERROR(versioned_attr_in_protocol,none, "'@_versioned' attribute cannot be used in protocols", ()) #define FRAGILE_FUNC_KIND \ "%select{a '@_transparent' function|" \ "an '@inline(__always)' function|" \ "an '@_inlineable' function|" \ "a default argument value}" ERROR(local_type_in_inlineable_function, none, "type %0 cannot be nested inside " FRAGILE_FUNC_KIND "1", (DeclName, unsigned)) ERROR(resilience_decl_unavailable, none, "%0 %1 is %select{private|fileprivate|internal|%error|%error}2 and " "cannot be referenced from " FRAGILE_FUNC_KIND "3", (DescriptiveDeclKind, DeclName, Accessibility, unsigned)) #undef FRAGILE_FUNC_KIND NOTE(resilience_decl_declared_here, none, "%0 %1 is not '@_versioned' or public", (DescriptiveDeclKind, DeclName)) ERROR(designated_init_in_extension_resilient,none, "initializer declared in an extension of " "non-'@_fixed_layout' type %0 must delegate to another initializer", (Type)) ERROR(designated_init_inlineable_resilient,none, "initializer for non-'@_fixed_layout' type %0 is " "'%select{@_transparent|@inline(__always)|@_inlineable|%error}1' and must " "delegate to another initializer", (Type, unsigned)) ERROR(class_designated_init_inlineable_resilient,none, "initializer for class %0 is " "'%select{@_transparent|@inline(__always)|@_inlineable|%error}1' and must " "delegate to another initializer", (Type, unsigned)) ERROR(inlineable_stored_property, none, "'@_inlineable' attribute cannot be applied to stored properties", ()) ERROR(inlineable_decl_not_public, none, "'@_inlineable' attribute can only be applied to public declarations, " "but %0 is %select{private|fileprivate|internal|%error|%error}1", (Identifier, Accessibility)) //------------------------------------------------------------------------------ // @_specialize diagnostics //------------------------------------------------------------------------------ ERROR(specialize_attr_nongeneric_trailing_where,none, "trailing 'where' clause in '_specialize' attribute of non-generic function %0", (Identifier)) ERROR(specialize_missing_where_clause,none, "missing 'where' clause in '_specialize' attribute", ()) ERROR(specialize_empty_where_clause,none, "empty 'where' clause in '_specialize' attribute", ()) ERROR(specialize_attr_non_concrete_same_type_req,none, "Only concrete type same-type requirements are supported by '_specialize' attribute", ()) ERROR(specialize_attr_only_generic_param_req,none, "Only requirements on generic parameters are supported by '_specialize' attribute", ()) ERROR(specialize_attr_only_one_concrete_same_type_req,none, "Only one concrete type should be used in the same-type requirement in '_specialize' attribute", ()) ERROR(specialize_attr_non_nominal_type_constraint_req,none, "Only conformances to nominal types are supported by '_specialize' attribute", ()) ERROR(specialize_attr_non_protocol_type_constraint_req,none, "Only conformances to protocol types are supported by '_specialize' attribute", ()) ERROR(specialize_attr_type_parameter_count_mismatch,none, "%select{too many|too few}2 type parameters are specified " "in '_specialize' attribute (got %1, but expected %0)", (unsigned, unsigned, bool)) ERROR(specialize_attr_missing_constraint,none, "Missing constraint for %0 in '_specialize' attribute", (DeclName)) ERROR(specialize_attr_unsupported_kind_of_req,none, "Only same-type and layout requirements are supported by '_specialize' attribute", ()) //------------------------------------------------------------------------------ // Variable usage diagnostics //------------------------------------------------------------------------------ WARNING(pbd_never_used_stmtcond, none, "value %0 was defined but never used; consider replacing " "with boolean test", (Identifier)) WARNING(pbd_never_used, none, "initialization of %select{variable|immutable value}1 %0 was never used" "; consider replacing with assignment to '_' or removing it", (Identifier, unsigned)) WARNING(capture_never_used, none, "capture %0 was never used", (Identifier)) WARNING(variable_never_used, none, "%select{variable|immutable value}1 %0 was never used; " "consider replacing with '_' or removing it", (Identifier, unsigned)) WARNING(immutable_value_never_used_but_assigned, none, "immutable value %0 was never used; " "consider removing it", (Identifier)) WARNING(variable_never_mutated, none, "%select{variable|parameter}1 %0 was never mutated; " "consider changing to 'let' constant", (Identifier, unsigned)) WARNING(variable_never_read, none, "%select{variable|parameter}1 %0 was written to, but never read", (Identifier, unsigned)) //------------------------------------------------------------------------------ // Circular reference diagnostics //------------------------------------------------------------------------------ ERROR(circular_reference, none, "circular reference", ()) ERROR(redundant_type_alias_define, none, "redundant type alias declaration", ()) NOTE(circular_reference_through, none, "through reference here", ()) //------------------------------------------------------------------------------ // Debug diagnostics //------------------------------------------------------------------------------ WARNING(debug_long_function_body, none, "%0 %1 took %2ms to type-check (limit: %3ms)", (DescriptiveDeclKind, DeclName, unsigned, unsigned)) WARNING(debug_long_closure_body, none, "closure took %0ms to type-check (limit: %1ms)", (unsigned, unsigned)) //------------------------------------------------------------------------------ // Pattern match diagnostics //------------------------------------------------------------------------------ ERROR(empty_switch_stmt,none, "'switch' statement body must have at least one 'case' or 'default' " "block; do you want to add a default case?",()) ERROR(non_exhaustive_switch,none, "%select{switch must be exhaustive, consider adding |do you want to add }0" "%select{missing cases|a default clause}1" "%select{:|?}0 %2", (bool, bool, StringRef)) NOTE(missing_particular_case,none, "missing case: '%0'", (StringRef)) #ifndef DIAG_NO_UNDEF # if defined(DIAG) # undef DIAG # endif # undef NOTE # undef WARNING # undef ERROR #endif